Dragana Sobic Saranovic is professor of nuclear medicine, chief of the Chair of Nuclear Medicine, president of Ph.D. programme for Radiology and Nuclear Medicine, Faculty of Medicine University of Belgrade, and deputy Director of Centre for Nuclear Medicine, Clinical Centre of Serbia. She is also Visiting professor on Faculty of Medicine University of Banja Luka, Bosnia and Hercegovina. She is the president of Nuclear cardiology Committee of Serbian Medical Society, the member of the Special task group for accreditation of Nuclear Medicine in Serbia. Currently, she is also National delegate of Serbian Society of Nuclear Medicine in European Association of Nuclear Medicine (EANM) and the member of EANM Ethics Committee. She managed or participated in 7 national and 12 international projects (IAEA or Erasmus +). She is a member of editorial board and/or reviewer in numerous scientific journals. Also, she was the organizer, chairperson or invited lecturer on numerous scientific meetings and has obtained various scientific awards. She is an author or co-author in about 350 publications of which 80 in journals indexed in CC and SCI.Prof Mariza Vorster is a Nuclear Medicine Physician at the University of Pretoria’s Department of Nuclear Medicine in the Steve Biko Academic Hospital, where she is jointly employed as Head of Clinical Unit and Associate Professor. She has published extensively on the subject of Tuberculosis and is a NRF-rated scientist. Scientific awards received include the prestigious South African Chris Jansen research award and best presentation at the IRIST meeting. She is the secretary of the council of Nuclear Physicians and a senate member of the Colleges of Medicine (South Africa).She has collaborated on several IAEA research projects and has been invited as an expert by the IAEA with regards to myocardial perfusion guideline setting, she is involved in the training of IAEA fellows and has hosted various IAEA workshops. She has been an invited speaker at several international conferences and is a reviewer for several scientific journals.Thomas NB Pascual is a Nuclear Medicine Physician and Educationalist with special interest and expertise in Adult and Paediatric Nuclear Medicine and PET/CT, Quality Management Systems, Health Professions Education and Health Economics. From 2012-2019, he was a professional staff member at the International Atomic Energy Agency (IAEA) as a Nuclear Medicine Physician/ Technical Officer under the Section of Nuclear Medicine and Diagnostic Imaging, Division of Human Health. He managed multiple projects heavily involved in technical programme planning, implementation and results-based monitoring ensuring the effective transfer and sharing of technical information with appropriate UN and international organizations and institutions. He was engaged in several research activities promoting Nuclear Medicine in IAEA Member States, including being the Primary Technical Officer (under the leadership of Dr Diana PAEZ) of the Coordinated Research Project (CRP) Use of 18F-FDG PET/CT for Imaging TB Patients and Related Conditions (HIV/AIDS, Tuberculosis): Focus on Drug Resistant Extrapulmonary Tuberculosis. In 2014 and 2017, he received the IAEA Merit Award (individual) for exceptionally meritorious performance. Currently, he is a recipient of the Returning Scientist Awardee of the Department of Science and Technology (DOST), Republic of the Philippines, engaged under the Philippine Nuclear Research Institute (PNRI).Prof. Sanjay Gambhir is Professor of Nuclear Medicine, as well as head of the Nuclear Medicine Department of the Sanjay Gandhi Postgraduate Institute of Medical Sciences (SGPGIMS) in Lucknow, India. Also, he works as Consultant.