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机译:The physical environment in family childcare homes and children's physical activity
Univ N Carolina, Dept Nutr, Ctr Hlth Promot & Dis Prevent, 1700 Martin Luther King Jr Blvd,Campus Box 7426, Chapel Hill, NC 27599 USA;
Washington Univ, Prevent Res Ctr St Louis, Brown Sch, St Louis, MO USA;
Duke Univ, Med Ctr, Dept Community & Family Med, Durham, NC 27710 USA;
childcare; family childcare homes; physical activity; OBESITY PREVENTION; SEDENTARY BEHAVIOR; PRESCHOOL-CHILDREN; CENTERS; PLAY; ACCELEROMETER; INTERVENTION; CALIBRATION; POLICIES;