Associate Professor Dr. Yusuf AÇIKGÖZ
Specialization: Medical Oncology

Education:

• 2004-2011: İnönü University Faculty of Medicine
• 2011-2016: Ankara Numune Training and Research Hospital, Internal Medicine
• 2017-2022: Health Sciences University, Medical Oncology

Professional Experience:

• 2016-2017: Bingöl City Hospital, Internal Medicine
• 2021-2022: Health Sciences University, Medical Oncology
• 2022-2023: Kastamonu Education and Research Hospital, Medical Oncology
• 2023-2024: Ohio State University, Medical Oncology
• 2024-Present: Lokman Hekim University, Medical Oncology, Ankara Hospital

Clinical Trials, Courses, Certifications:

Clinical Trials:

• 2017-2021: Phase III, CheckMate-649 Study (Assistant Investigator)
• 2022-Present: Phase III, Fortitude-101 Study (Assistant Investigator)

Courses:

• 2018: Medicres Basic and Advanced Biostatistics Training Program (ongoing), Istanbul-Vienna
• 2019: Immuno-Oncology Education Course, March 1-2, 2019, Vienna, Central European Cooperative Oncology Group (CECOG)
• 2018: Good Clinical Practice Certification, April 7-8, 2018, Ankara, Health Sciences University
• 2017: Basic Oncology Training Program, November 25-26, 2017, Adana, Clinical Oncology Society
• 2016: Basic Ultrasonography Course (10 hours theoretical + 10 hours practical), September 24-25, 2016, Ankara, Turkish Emergency Medicine Association

Certifications:

• Ongoing: ECFMG Certification
• 2024: CITI Responsible Conduct of Research (The Ohio State University)
• 2024: CITI IACUC-Laboratory Animal Research (The Ohio State University)
• 2024: CITI Human Subjects Protection (The Ohio State University)
• 2024: CITI Good Clinical Practice (The Ohio State University)
• 2023: Occupational English Test (OET)
• 2019: International English Language Testing System (IELTS), Total Score: 6.5, May 26, 2019, Ankara, British Council
• 2017: USMLE Step 2 CK Exam; Score: 244, February 7, 2017
• 2016: USMLE Step 1 Exam; Score: 215, August 25, 2016

Memberships:

• American Society of Clinical Oncology (ASCO) - 2022
• Turkish Society of Medical Oncology - 2020

The doctor is an oncologist specializing in the treatment of breast, lung, and gastrointestinal cancers. Currently, the doctor practices at Istinye Liv University Hospital.

With a career spanning multiple esteemed institutions, the doctor has served as an Internal Medicine Specialist at Malatya State Hospital, a physician at Ankara Oncology Clinic, and a member of the Oncology Department at Erzurum Regional Training and Research Hospital.

The doctor graduated from the Faculty of Medicine at Selcuk University and achieved the title of Associate Professor in 2016.

Lee Ji Hyun, MD, is a breast and thyroid surgeon. Dr. Lee is Head of Breast and Thyroid Surgery at Naeun Hospital. Clinical focus includes benign breast disease, breast cancer, and tumor surgery. Additional areas include benign thyroid disease, thyroid cancer, and parathyroid disorders. Skills include Mammotome procedures, axillary node management, and breast and thyroid ultrasound.

Education and training: Yonsei University College of Medicine. Internship and general surgery residency at Yonsei University Severance Hospital. Short-term clinical training at the Affiliated Hospital of the Cancer Research Institute in Japan.

Key roles: Chief of General Surgery at Incheon Christian Hospital and General Surgery Specialist at Cheil Hospital. Director of the Breast Center and Chief of the Department of Surgery at Samsung Cheil Hospital. Chief of General Surgery and Deputy Director of Clinical Services at Cheil Hospital. Outpatient Professor of Surgery at CHA Gangnam Medical Center, CHA University. Chief of General Surgery at Daejeong Hospital.

Education & Expertise

• 1998 to 2004 – Istanbul University, Istanbul Faculty of Medicine
• 2005 to 2009 – Düzce University, Internal Medicine Specialization
• 2009 to 2010 – Beytüşşebap State Hospital, Compulsory Internal Medicine Service
• 2010 to 2013 – Bülent Ecevit University, Medical Oncology Specialization
• 2013 to 2015 – Recep Tayyip Erdoğan University, Medical Oncology Compulsory Service
• 2015 to Present – Associate Professor, Recep Tayyip Erdoğan University
• 2015 to 2021 – Lecturer, Medical Oncology, Sakarya University Faculty of Medicine
• 2020 to Present – Professor, Sakarya University Faculty of Medicine
• 2020 to Present – Ph.D. Student, Inorganic Chemistry, Sakarya University

Experience

• 2008 – Cleveland Clinic, Rheumatology & Gastroenterology Rotation
• 2016 to 2017 – Northeastern University, The Center for Pharmaceutical Biotechnology and Nanomedicine, Boston, U.S.

Professional Memberships

• TTOD (Turkish Society of Medical Oncology)
• ASCO (American Society of Clinical Oncology)
• ESMO (European Society for Medical Oncology)

Education and Specialization

• 2006: Kocaeli University Faculty of Medicine
• 2014: Akdeniz University Faculty of Medicine, Internal Medicine
• 2018: Akdeniz University Faculty of Medicine, Medical Oncology

Experience

• 2006 - 2008: Konya Derebucak District Hospital
• 2009 - 2015: Akdeniz University Hospital
• 2015: Antalya Kaş State Hospital
• 2015 - 2016: İnönü University Faculty of Medicine
• 2016 - 2021: Akdeniz University Hospital
• 2021 - 2023: Antalya Training and Research Hospital

Assoc. Prof. Ayşe İrem Yasin, M.D., is a medical oncologist who specializes in solid tumors. Her clinical focus includes breast, lung, gastrointestinal, gynecologic, and urologic cancers. She also treats brain and other CNS tumors, soft tissue sarcomas, head and neck cancers, adenocarcinomas, melanoma, Merkel cell carcinoma, and cancers of unknown primary. She practices at Medipol Acıbadem District Hospital (2025–present). She previously worked at Şişli Etfal Training and Research Hospital (2023–2025).

She completed a Medical Oncology fellowship at Bezmialem Vakıf University (2019–2022). This followed an Internal Medicine residency at the same institution (2012–2016). Her international experience includes the Breast Cancer Unit at the University of Piemonte Orientale in Novara (2022). She also trained at Basel University Hospital, Cleveland Clinic, and Harvard Medical School. She holds the ESMO Board Certificate (2022).

Assoc. Prof. Atakan Topçu, M.D., is a medical oncologist at Medipol University and Medipol Acıbadem Regional Hospital. He treats solid tumors, including lung, breast, colorectal, gastric, and neuroendocrine cancers. His work also covers targeted therapies, immunotherapy, geriatric oncology, and cancer-related malnutrition, cachexia, and sarcopenia.

He has authored more than 50 peer-reviewed papers. Recent work includes a 2024 Frontiers in Medicine study on geriatric syndromes and a 2023 Future Oncology paper on sarcopenia and anxiety in lung cancer. He has also published on the CONUT score in breast cancer and on malnutrition in HER2-negative metastatic gastric cancer.

Dr. Topçu serves on the Editorial Board of BMC Cancer. He is a member of the Turkish Society of Medical Oncology, ESMO, and the Turkish Geriatrics Society. Education and training: M.D., Uludağ University; residency in Internal Medicine, Marmara University; fellowship in Medical Oncology, Bezmialem Vakıf University.

Dr. Irfan Cicin is a Professor of Medical Oncology at the Trakya University Faculty of Medicine (2015–present). He has over 20 years of medical oncology experience and has held academic roles since 2010.

Education: MD, Istanbul University – Cerrahpaşa (1991–1997). Residency in Internal Medicine, Trakya University (1997–2002). Fellowship in Medical Oncology, Trakya University (2002–2004).

Practice: Medical Oncologist, Trakya University (2005–2008). Medical Oncologist, Elazığ Training and Research Hospital (2008–2010). Associate Professor of Medical Oncology, Trakya University (2010–2015). He previously served as a physician in the Turkish Air Force at Etimesgut Military Hospital (2004–2005).

Dr. Zuhal Cakmak Peksen is a Family Medicine Specialist since 2017. She earned her MD from Çukurova University in 2010. She completed specialty training at Yüzüncü Yıl University between 2013 and 2017. She is currently studying for a bachelor’s degree in Health Management at Anadolu University (2024–present).

She has 15 years of clinical practice (2010–2025) across 8 institutions. Her experience includes research in Family Medicine (2013–2017) and work at several Family Health Centers. Since 2020, she has served at TOKİ Avrupa Family Health Center in Gaziosmanpaşa, Istanbul.

Dr. Ercan Ozden is a specialist in internal medicine and medical oncology. He earned his medical degree and completed his residency at Istanbul University, Cerrahpaşa Faculty of Medicine. He later received a subspecialty in medical oncology at Kocaeli University Faculty of Medicine from 2016 to 2020.

Dr. Ozden has worked in medical oncology at Şırnak State Hospital. He has also served as an internal medicine specialist at Bağcılar Private Safa Hospital and Küçükçekmece Batı Bahat Hospital. He has extensive clinical experience in both internal medicine and oncology.

Dr. Son Dong Wan, MD, PhD, is the Chief of Urology at Naeun Hospital. He specializes in urologic oncology, urinary incontinence, sexual dysfunction, and laser prostate surgery. He performs robotic and laparoscopic surgery for cancers of the prostate, bladder, ureter, and kidney. He also treats ureteropelvic junction (UPJ) obstruction.

He earned his PhD from Pusan National University. He completed his internship and residency at Pusan National University Hospital. He is a former Chief at Wallace Memorial Baptist Hospital. He served as a Professor at the Catholic University College of Medicine. He was a Clinical Fellow at Seoul National University Bundang Hospital. He was a Visiting Professor at the University of California, San Diego (UCSD). He completed training in urinary incontinence surgery at the University of Liège.

Awards include the Excellent Paper Award (2007) and the Academic Achievement Award (2014) from the Korean Continence Society. He also received the Best Poster Award from the European Association of Urology (2013).

2017: Oticon Medical Scientific Center Copenhagen Denmark.
2016: ICLO Teaching Center New Endoscopic Approaches to Lateral Skull Base, Inner Ear and Cerebello-Pontine Angle, Verona Italy
2016: World Hearing Center, Institute of Physiology and Pathology of Hearing, Warsaw,Poland
2015: Cochlear Science and Research Center Berlin Germany.
2014: Cochlear implant Center Medel Company Innsburck, Austria.
2014: Hannover Medical School. Clinic for Laryngology, Rhinology and Otology, Hannover, Germany
2014: Academy of Hearing Aid Acoustics (Akademie für Hörgerate-Akustik), Lübeck, Germany.
2013: International European Sialendoscopy Training Center, Geneva, Switzerland.
2012: University clinic of ORL, Head and Neck Surgery, klinikum der Universitat, Munchen, Germany.
2012: University clinic of ORL, Head and Neck Surgery, Bern, Switzerland.
2011: University clinic of ORL, Head and Neck Surgery, klinikum der Universitat, Munchen, Germany.
2007: The Ohio State University, Medical Faculty, Department of Otolaryngology, Division of Otology and Neurotology. Columbus, Ohio, USA.
2006: University of Würzburg, Department of Otolaryngology, Division of Otology and Neurotology. Würzburg, Germany.
1999-2003 İnönü Üniversitesi Tıp Fakültesi Kulak Burun Boğaz Anabilim Dalı
1993-1999 İstanbul Üniversitesi Cerrahpaşa Tıp Fakültesi

Turkish Otorhinolaryngology and Head and Neck Surgery Association

Turkish Otorhinolaryngology and Head and Neck Surgery Foundation

Turkish Rhinology Society

Tigris-Euphrates Basin Otorhinolaryngology and Head and Neck Surgery Association

Gaziantep Otorhinolaryngology Association

Turkish Otorhinolaryngology and Head and Neck Surgery Qualification Board

Turkish Otology Association

Malatya Otorhinolaryngology Association

American Academy of Otolaryngology Head and Neck Surgery

Mediterranean Society of Otology and Audiology

International Vertigo Association

Dr. Muhammed Mustafa Atci is an Associate Professor of Medical Oncology at İstinye University, Liv Hospital Topkapı (2025–present). He previously served as Associate Professor and Education Coordinator at Prof. Dr. Cemil Taşcıoğlu City Hospital (2023–2025). He was also a Medical Oncologist there (2018–2021).

He has been a member of ASCO and the Turkish Society of Medical Oncology since 2018. He is the author or co-author of 19 peer-reviewed international papers on colon, breast, gastric, pancreatic, lung, thyroid, sarcoma, and colorectal cancers.

Notable works include a multicentre study on stage IIB colon cancer survival (Journal of Chemotherapy). He also studied the De Ritis ratio for lung metastasis in testicular cancer (Current Urology). His prognostic studies used PET/CT, MSI, lymph node ratio, and metabolic tumor volume.

Uzm. Dr. Erkan Göcen is a Radiation Oncology Specialist at Çerkezköy Private Optimed Hospital (Optimed Health Group). He graduated from İstanbul University, İstanbul Faculty of Medicine (Çapa) in 2003.

Career: He trained and practiced in Radiation Oncology from 2010 to 2012. He worked in public and private health institutions from 2012 to 2016. He served in the private medical sector as a Radiation Oncology Specialist from 2016 to 2023. He has been at Optimed Hospital since 2024.

Clinical interests: cancers of the brain, head and neck, esophagus, stomach, colorectal, pancreas, prostate, bladder, lung, soft tissues (sarcomas), skin, uterus and cervix, and breast. Affiliations: Turkish Society for Radiation Oncology (TROD) and Tekirdağ Medical Chamber. Languages: English and Turkish.