共 23 条
[3]
Bushy A, 1998, J Am Med Womens Assoc (1972), V53, P53
[4]
BUTLER MA, 1994, 9425 USDA AGR RUR EC
[5]
*CDCP, 1998, MMWR-MORBID MORTAL W, V47, P1097
[6]
Centers for Disease Control and Prevention, 1996, Physical activity and health: a report of the Surgeon General
[7]
Centers for Disease Control and Prevention, 2001, MMWR-MORBID MORTAL W, V50, P166
[10]
Jones DA, 1998, ARCH FAM MED, V7, P285