title: Reply to: The development of the human anorectum.
authors.forename: Helga
authors.initials: H
authors.lastname: Fritsch
mesh_terms: D001003:Anal Canal / Q000196:embryology*; D002454:Cell Differentiation; D002988:Cloaca / Q000196:embryology; D004848:Epithelium / Q000196:embryology; D006801:Humans; D008648:Mesoderm / Q000166:cytology; D038081:Organogenesis; D012007:Rectum / Q000196:embryology*; D009626:Terminology as Topic