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Validation of the SOPLAY direct observation tool with an accelerometry-based physical activity monitor.
J Phys Act Health. 2011 Nov;8(8):1108-16. doi: 10.1123/jpah.8.8.1108.
J Phys Act Health. 2011.
PMID: 22039129
Family communication patterns and teen drivers' attitudes toward driving safety.
Yang J, Campo S, Ramirez M, Krapfl JR, Cheng G, Peek-Asa C.
Yang J, et al. Among authors: krapfl jr.
J Pediatr Health Care. 2013 Sep-Oct;27(5):334-41. doi: 10.1016/j.pedhc.2012.01.002. Epub 2012 Feb 22.
J Pediatr Health Care. 2013.
PMID: 22361241
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