AU - Mancuso CA, Choi TN, Westermann H, et al TI - Increasing physical activity in patients with asthma through positive affect and self-affirmation: A randomized trial PT - JOUR DP - 2012 TA - Archives of Internal Medicine pages = {337-343}, VI - 172 IP - 4 AID - 10.1001/archinternmed.2011.1316 [doi] 4100 - http://dx.doi.org/10.1001/archinternmed.2011.1316 SO - Archives of Internal Medicine February 27, 2012 172(4):337