TI - MEdical news PT - JOUR DP - 1909 TA - Journal of the American Medical Association pages = {642-646}, VI - LII IP - 8 AID - 10.1001/jama.1909.02540340040010 [doi] 4100 - http://dx.doi.org/10.1001/jama.1909.02540340040010 SO - Journal of the American Medical Association February 20, 1909 LII(8):642