title: On the biologic nature of associations: evidence from a study of radial ray deficiencies and associated malformations.
authors.affiliation: Department of Human Genetics, University of Manitoba, Winnipeg, Canada.
authors.forename: J A
authors.initials: JA
authors.lastname: Evans
authors.forename: M
authors.initials: M
authors.lastname: Vitez
authors.forename: A
authors.initials: A
authors.lastname: Czeizel
mesh_terms: D000015:Abnormalities, Multiple / Q000473:pathology*; D001006:Anus, Imperforate / Q000473:pathology; D001695:Biology; D002869:Chromosome Aberrations / Q000473:pathology; D025063:Chromosome Disorders; D004933:Esophageal Atresia / Q000473:pathology; D005147:Facial Bones / Q000002:abnormalities; D005260:Female; D005385:Fingers / Q000002:abnormalities; D006330:Heart Defects, Congenital / Q000473:pathology; D006801:Humans; D007223:Infant; D007668:Kidney / Q000002:abnormalities; D008297:Male; D011379:Prognosis; D011884:Radius / Q000002:abnormalities* / Q000473:pathology; D012737:Sex Factors; D012886:Skull / Q000002:abnormalities; D013131:Spine / Q000002:abnormalities; D015996:Survival Rate; D014138:Tracheoesophageal Fistula / Q000473:pathology