Fanconi Anemia, Complementation Group S, also known as fancs, is related to pancreatic cancer 4 and breast-ovarian cancer, familial 1. An important gene associated with Fanconi Anemia, Complementation Group S is BRCA1 (BRCA1 DNA Repair Associated). Affiliated tissues include bone marrow and bone, and related phenotypes are coarse facial features and global developmental delay