TY - JOUR AU - Patterson, D TI - The causes of Down syndrome. JF - Scientific American DO - 10.1038/scientificamerican0887-52 DA - 1987-09-24 UR - https://www.deepdyve.com/lp/pubmed/the-causes-of-down-syndrome-81DcWONbxt SP - 52, 60 EP - 57, 60 VL - 257 IS - 2 DP - DeepDyve ER -