Circumstances limiting the development and verification of a comprehensive theory of craniofacial morphogenesis.
D000818:Animals; D001846:Bone Development; D000882:Haplorhini; D006801:Humans; D008445:Maxillofacial Development; D010684:Philosophy; D051381:Rats; D012886:Skull / Q000254:growth & development*; D013580:Synostosis