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Diav-Citrin O, Atanackovic G, Koren G.Diav-Citrin O, et al. Among authors: atanackovic g.Ther Drug Monit. 1999 Feb;21(1):74-81. doi: 10.1097/00007691-199902000-00011.Ther Drug Monit. 1999.Retraction in: Ther Drug Monit. 2019 Apr;41(2):256. doi: 10.1097/FTD.0000000000000607.PMID: 10051057Retracted.