TY - JOUR T1 - Correction JF - Journal of Epidemiology and Community Health JO - J Epidemiol Community Health SP - 292 LP - 292 DO - 10.1136/jech-2013-203256corr1 VL - 69 IS - 3 A2 - , Y1 - 2015/03/01 UR - http://jech.bmj.com/content/69/3/292.1.abstract N2 - Fang S, Subramanian S, Piccolo R, et al. Geographic variation in sleep duration: a … ER -