TI - PRotect against salmonella PT - JOUR DP - 1999 TA - JAMA pages = {1866}, VI - 281 IP - 19 AID - 10.1001/jama.281.19.1866 [doi] 4100 - http://dx.doi.org/10.1001/jama.281.19.1866 SO - JAMA May 19, 1999 281(19):1866