AU - Chakravarthy MV, Booth FW TI - Inactivity and inaction: We can't afford either PT - JOUR DP - 2003 TA - Archives of Pediatrics & Adolescent Medicine pages = {731-732}, VI - 157 IP - 8 AID - 10.1001/archpedi.157.8.731 [doi] 4100 - http://dx.doi.org/10.1001/archpedi.157.8.731 SO - Archives of Pediatrics & Adolescent Medicine August 1, 2003 157(8):731