TI - SChool hygiene PT - JOUR DP - 2009 TA - JAMA pages = {2052}, VI - 301 IP - 19 AID - 10.1001/jama.2009.684 [doi] 4100 - http://dx.doi.org/10.1001/jama.2009.684 SO - JAMA May 20, 2009 301(19):2052