TI - A rational holiday schedule PT - JOUR DP - 2012 TA - JAMA pages = {889}, VI - 307 IP - 9 AID - 10.1001/jama.2012.121a [doi] 4100 - http://dx.doi.org/10.1001/jama.2012.121a SO - JAMA March 7, 2012 307(9):889