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Cao Y, Greer RD.Cao Y, et al. Among authors: greer rd.Anal Verbal Behav. 2019 Jan 8;34(1-2):79-99. doi: 10.1007/s40616-018-0106-1. eCollection 2018 Dec.Anal Verbal Behav. 2019.PMID: 31976216Free PMC article.
Karmali I, Greer RD, Nuzzolo-Gomez R, Ross DE, Rivera-Valdes C.Karmali I, et al. Among authors: greer rd.Anal Verbal Behav. 2005;21(1):145-53. doi: 10.1007/BF03393016.Anal Verbal Behav. 2005.PMID: 22477320Free PMC article.