American Journal of Preventive Medicine
American Journal of Preventive Medicine > 2000 > 19 > 4 > 238-244
American Journal of Preventive Medicine > 2000 > 19 > 4 > 214-219
American Journal of Preventive Medicine > 2000 > 19 > 4 > 230-237
American Journal of Preventive Medicine > 2000 > 19 > 4 > 264-269
American Journal of Preventive Medicine > 2000 > 19 > 4 > 279-285
American Journal of Preventive Medicine > 2000 > 19 > 4 > 286-291
American Journal of Preventive Medicine > 2000 > 19 > 4 > 253-263
American Journal of Preventive Medicine > 2000 > 19 > 4 > 321-324