Use of Matched Pairs in Evaluation of a Birth Control Program
1970 ◽
Vol 25
(3)
◽
pp. 254-256
1939 ◽
Vol 29
(3)
◽
pp. 253-256
1966 ◽
Vol 56
(1_Suppl)
◽
pp. 40-47
◽
Keyword(s):
2020 ◽
Vol 7
(2)
◽
pp. 170-176
Keyword(s):
Keyword(s):
2016 ◽
Vol 3
(3)
◽
pp. 193-197