Grunwald is included in the Stanford University Ranking list of the World's Top 2% of Scientists (September 2022; DOI:10.17632/btchxktzyw.4). More details about the global database of standardized citation indicators can be found at: https://elsevier.digitalcommonsdata.com/datasets/btchxktzyw/4. The publicly available global database includes top-cited scientists that provides standardized information on citations, h-index, co-authorship adjusted hm-index, citations to papers in different authorship positions and a composite indicator (c-score).
Grunwald also ranked high in the World Scientist and University Rankings 2023 (AD Scientific Index): https://www.adscientificindex.com/?con=&tit=&country_code=&q=grunwald