title: [Recent studies on supernumerary ribs. Theory concerning their morphogenesis and proposed classification].
mesh_terms: D002574:Cervical Vertebrae / Q000002:abnormalities; D005260:Female; D006801:Humans; D008297:Male; D012272:Ribs / Q000002:abnormalities*
vernacular_title: Ulteriori osservazioni sulle coste soprannumerarie. Ipotesi sulla loro morfogenesi e proposta di classificazione