abnormalities of the secondary palate were studied in an animal model in which features of treacher collins syndrome ( tcs ) and nager or miller syndromes ( both of which are facially similar to treacher collins , but include limb malformations ) were induced by acute maternal exposure to 13-cis-retinoic acid ( 13-cis-ra , isotretinoin , accutane ) .
C0022265
isotretinoin
C0699581
accutane