1. Nat Med. 2021 Nov;27(11):1853-1854. doi: 10.1038/s41591-021-01535-y. The lesson of ivermectin: meta-analyses based on summary data alone are inherently unreliable. Lawrence JM(1), Meyerowitz-Katz G(2), Heathers JAJ(3), Brown NJL(4), Sheldrick KA(5). Author information: (1)St George's, University of London, London, UK. (2)School of Health and Society, University of Wollongong, New South Wales, Australia. (3)Cipher Skin, Denver, CO, USA. (4)Linnaeus University, Växjö, Sweden. (5)University of New South Wales, Kensington, Australia. k.sheldrick@unsw.edu.au. Comment in Nat Med. 2022 Mar;28(3):429-430. doi: 10.1038/s41591-021-01675-1. DOI: 10.1038/s41591-021-01535-y PMID: 34552263 [Indexed for MEDLINE]