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Morrison JL, Chien C, Gruber N, Rurak D, Riggs W.Morrison JL, et al. Among authors: riggs w.Brain Res Dev Brain Res. 2001 Nov 26;131(1-2):47-56. doi: 10.1016/s0165-3806(01)00255-3.Brain Res Dev Brain Res. 2001.PMID: 11718835
Oberlander TF, Warburton W, Misri S, Riggs W, Aghajanian J, Hertzman C.Oberlander TF, et al. Among authors: riggs w.Birth Defects Res B Dev Reprod Toxicol. 2008 Feb;83(1):68-76. doi: 10.1002/bdrb.20144.Birth Defects Res B Dev Reprod Toxicol. 2008.PMID: 18293409