TY  - JOUR
A1  - Dalla Zuanna, G.
A1  - Gavini, S.
A1  - Spinelli, A.
T1  - The effect of changing sexual, marital and contraceptive behaviour on conceptions, abortions, and births
Y1  - 1998
DO  - 10.1023/A:1006000814951
VL  - 14
IS  - 1

ER  -