https://pmc.ncbi.nlm.nih.gov/articles/PMC6077049

Amr SS, Tbakhi A. Ibn Sina (Avicenna): the prince of physicians. Ann Saudi Med. 2007 Mar-Apr;27(2):134-5. doi: 10.5144/0256-4947.2007.134. PMID: 17420624; PMCID: PMC6077049.