The list of Web of Science’ „Highly Cited Researchers” for 2019 has been released ( This year 6216 researchers from 21 various scientific disciplines were recognized from all over the world, whose publications were most frequently cited between 2008 and 2018. Prof. Pál Pacher, external scientific advisor and Doctor Honoris Causa of Semmelweis University, currently affiliated at NIH, USA has received this highly prestigious honor again, similarly to the previous years.