The inclusion of Dr. Saeed Safiri in the list of the top 1% of the world's top medical scientists is a source of pride and honor for the Research Institute of Aging. The number of highly cited researchers in the country's medical sciences has increased to 73, of which Dr. Saeed Safiri is one of them. The names of these colleagues are available in the scientometric system of the faculty members of the country's medical universities at the address http://isid.research.ac.ir/esi. It should be noted that the ranking results of the recent ESI period have been calculated based on the number of citations to articles published in selected journals of the ISI Web of Science database over a period of ten years and six months, from January 1 to the end of April 2019.