TY - RPRT TI - Common variable immunodeficiency: how many diseases? AU - G P Spickett AU - J Farrant AU - M E North AU - J G Zhang AU - L Morgan AU - A D Webster PY - 1997 DO - 10.1016/s0167-5699(97)01086-4 UR - https://pubmed.ncbi.nlm.nih.gov/9238835/ ID - 9238835 ER -