AU - POPPER H, STEIGMANN F TI - THe clinical significance of the plasma vitamin a level PT - JOUR DP - 1943 TA - Journal of the American Medical Association pages = {1108-1114}, VI - 123 IP - 17 AID - 10.1001/jama.1943.02840520024007 [doi] 4100 - http://dx.doi.org/10.1001/jama.1943.02840520024007 SO - Journal of the American Medical Association December 25, 1943 123(17):1108