Abortion surveillance program of the center for disease control.

Tekijä Smith, J C, Bourne, J P
Julkaistu 1973

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

Tekijä Kahn, J. B., Bourne, J. P., Asher, J. D., Tyler, C. W.
Julkaistu 1971

Medical complications from induced abortion by the super coil method.

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