title: The case for the odd case.
authors.forename: Nancy L
authors.initials: NL
authors.lastname: Segal
mesh_terms: D000818:Animals; D004200:Diseases in Twins; D005260:Female; D006801:Humans; D008297:Male; D008425:Maternal Behavior; D008499:Medical Records; D011247:Pregnancy; D011272:Pregnancy, Multiple; D011643:Publishing; D014427:Twins; D001503:Ursidae