title: Comparative organ system development: introduction.
authors.affiliation: Pfizer Global Research and Development, Drug Safety Evaluation, Groton, Connecticut 06340, USA. mark_e_hurtt@groton.pfizer.com
authors.forename: Mark E
authors.initials: ME
authors.lastname: Hurtt
authors.forename: J David
authors.initials: JD
authors.lastname: Sandler
mesh_terms: D000818:Animals; D001846:Bone Development; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007668:Kidney / Q000254:growth & development*; D008168:Lung / Q000254:growth & development*; D008297:Male; D014566:Urogenital System / Q000254:growth & development*