TI - STudies on hookworm disease in szechwan province, west china PT - JOUR DP - 1949 TA - Journal of the American Medical Association pages = {423-424}, VI - 141 IP - 6 AID - 10.1001/jama.1949.02910060061028 [doi] 4100 - http://dx.doi.org/10.1001/jama.1949.02910060061028 SO - Journal of the American Medical Association October 8, 1949 141(6):423