title: Janiceps twins.
authors.forename: A
authors.initials: A
authors.lastname: Rodin
authors.forename: J
authors.initials: J
authors.lastname: Key
mesh_terms: D006257:Head / Q000002:abnormalities*; D006801:Humans; D015994:Incidence; D009333:Neck / Q000002:abnormalities*; D013909:Thorax / Q000002:abnormalities*; D014428:Twins, Conjoined / Q000196:embryology*