Castilla, E E Patterns of combined limb malformations. [electronic resource] - Teratology Oct 1977 - 203-9 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0040-3709 Standard No.: 10.1002/tera.1420160215 doi Subjects--Topical Terms: Abnormalities, Multiple--epidemiologyArm--abnormalitiesCongenital Abnormalities--classificationEctromelia--epidemiologyFemaleFingers--abnormalitiesHumansInfant, NewbornLeg--abnormalitiesMaleSex RatioSouth AmericaSyndactyly--epidemiology