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Poulev A, Heckman JR, Raskin I, Belanger FC.Poulev A, et al. Among authors: heckman jr.PeerJ. 2019 Feb 18;7:e6477. doi: 10.7717/peerj.6477. eCollection 2019.PeerJ. 2019.PMID: 30805251Free PMC article.