TY - CONF T1 - Null alleles are not a common cause of type 1 vonWillebrand's disease JO - BRITISH JOURNAL OF HAEMATOLOGY PY - 1998/07/01 AU - Coughlan TC AU - Goodeve AC AU - Hampton KK AU - Makris M AU - Peake IR ED - VL - 102 IS - 1 SP - 15 EP - 15 Y2 - 2025/04/04 ER -