作者: Nicolaas P. Pronk , Louise H. Anderson , A.Lauren Crain , Brian C. Martinson , Patrick J. O'Connor
DOI: 10.1016/J.AMEPRE.2004.04.022
关键词:
摘要: … , a large Midwestern health plan in the United States. Random samples of 1000 members were selected from among three subgroups of the entire health plan population: adolescents (…