Abortion surveillance program of the center for disease control.

par Smith, J C, Bourne, J P
Publié 1973

Surveillance of abortions in hospitals in the United States, 1970.

par Kahn, J. B., Bourne, J. P., Asher, J. D., Tyler, C. W.
Publié 1971

Medical complications from induced abortion by the super coil method.

par Bourne, J P, Berger, G S, Haber, R J, Tyler, C W, Keith, L, Knisely, K, Zackler, J
Publié 1974