| Description | Calculations, data, pedigrees and notes from research into inherited phenylketonuria, including results from urine sampling, the relationship of blood type, hair colour and phenylketonuria, and data on correlation with head size, racial origin, and learning disabilities. Also includes a typescript of "A Search for Linkage Between the A, B, O Agglutinogens and Phenylketonuria" by Penrose. |