TI - THe consumer trend PT - JOUR DP - 1939 TA - Journal of the American Medical Association pages = {235-236}, VI - 113 IP - 3 AID - 10.1001/jama.1939.02800280047013 [doi] 4100 - http://dx.doi.org/10.1001/jama.1939.02800280047013 SO - Journal of the American Medical Association July 15, 1939 113(3):235