论文信息 - The changing pattern of prenatal care utilization in the United States, 1981-1995, using different prenatal care indices. - 字舞流文

The changing pattern of prenatal care utilization in the United States, 1981-1995, using different prenatal care indices.

J. A. Martin | J. Martin | S. Ventura | M. Kogan | M. Kotelchuck | G. Alexander | F. Frigoletto | J. Martin | J. A. Martin