Dr. Adam D. Tarnoki is an assistant professor, radiologist and twin researcher at Semmelweis University Medical Imaging Center and Department Head, Department of Radiology at National Institute of Oncology, Budapest, Hungary. He is a founding member of the Hungarian Twin Registry. He has presented more than 200 international lectures and has authored over 150 publications. He is a board member of the Hungarian Society of Radiologists and teaches radiology in English, German and Hungarian at Semmelweis University. Dr. Tarnoki serves as vice-president of the Hungarian Medical Association of America Hungary Chapter. He has also served as a member of the local organizing committee and Faculty of the 3rd World Congress on Twin Pregnancy and the 15th Congress of the International Society for Twin Studies (ISTS) in Budapest, Hungary, 2014 and the local host of the 19th International Congress on Twin Studies hold online in November, 2021. He serves as a deputy editor-in-chief of the Hungarian Radiology journal and he is the president of the International Society of Twin Studies (ISTS) since 2022. Dr. David L. Tarnoki is an assistant professor, radiologist and twin researcher at the Semmelweis University Medical Imaging Center and Head of Oncologic Imaging Diagnostic Center, National Institute of Oncology, Budapest, Hungary. He is a founding member of the Hungarian Twin Registry and has presented more than 200 international lectures and authored over 150 publications. He is the board member of the Hungarian Society of Radiologists and teaches radiology in English, German and Hungarian at Semmelweis University. Dr. Tarnoki serves as secretary of the Hungarian Medical Association of America Hungary Chapter and is a member of the Academy of Young Researchers, Hungarian Academy of Sciences. He has also served as a member of the local organizing committee and Faculty of the 3rd World Congress on Twin Pregnancy and the 15th Congress of the International Society for Twin Studies (ISTS) in Budapest, Hungary, 2014 and the local host of the 19th International Congress on Twin Studies hold online in November, 2021. He is the secretary of the International Society of Twin Studies (ISTS) since 2022. Dr. Jennifer R. Harris is currently a Research Director at the Center of Fertility and Health at the Norwegian Institute of Public Health in Oslo, Norway. She has interdisciplinary training in life-span development and genetics. She has been conducting twin research throughout her academic career. She is the past president of the International Society for Twin Studies, a recipient of the James Shields Award for outstanding research in behavioral genetics, and is the scientific director of the Norwegian Twin Registry. Dr. Harris has broad commitment to the wider scientific community and serves on several expert panels, boards, steering groups, scientific advisory committees and editorial boards. Dr. Nancy L. Segal is currently Professor of Psychology at California State University, Fullerton and Director of the Twin Studies Center. She has authored over 250 scientific articles and book chapters, as well as seven books on twins, most recently, Deliberately Divided: Inside the Controversial Study of Twins and Triplets Adopted Apart. Her 2012 book, Born Together-Reared Apart: The Landmark Minnesota twin Study, won the 2013 William James Award from the American Psychological Association. Dr. Segal has received several international awards, including the James Shields Award for Lifetime Contributions to Twin Research (International Society for Twin Studies) and the International Making a Difference Award (Multiple Births Canada). She is also the 2016 recipient of the prestigious Wang Family Excellence Award from California State University. Dr. Segal has contributed to national and international media, including the New York Times and the Washington Post. She has been a frequent guest on national and international television and radio programs, such as the Today Show, Good Morning America, the Martha Stewart Show, the Oprah Winfrey Show, The Forum (BBC) and the Hidden Brain National Public Radio).