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Journal of Ethnopharmacology|July 6, 2007
A developmental toxicity-screening test of valerianMei Yao, Helen E Ritchie, Patricia D Brown-WoodmanBirth Defects Research. Part A, Clinical and Molecular Teratology|September 10, 2003
Effect of co-administration of retinoids on rat embryo development in vitroHelen E Ritchie, Patricia D Brown-Woodman, Ann KorabelnikoffJournal of Ethnopharmacology|May 20, 2008
A reproductive screening test of hawthornMei Yao, Helen E Ritchie, Patricia D Brown-WoodmanReproductive Toxicology (Elmsford, N.Y.)|June 20, 2006
A reproductive screening test of feverfew: is a full reproductive study warranted?Mei Yao, Helen E Ritchie, Patricia D Brown-WoodmanBirth Defects Research. Part B, Developmental and Reproductive Toxicology|September 30, 2005
A reproductive screening test of goldensealMei Yao, Helen E Ritchie, Patricia D Brown-WoodmanBirth Defects Research. Part B, Developmental and Reproductive Toxicology|January 28, 2004
Preliminary screening study of reproductive outcomes after exposure to yarrow in the pregnant ratClaire L Boswell-Ruys, Helen E Ritchie, Patricia D Brown-WoodmanPageof 1