TY  - GEN
AU  - Ball,M J
TI  - The "morning after pill"
SN  - 0008-4409
PY  - 1971///1207
KW  - Contraceptives, Oral
KW  - Contraceptives, Postcoital
KW  - Female
KW  - Humans
KW  - Pregnancy
N1  - Publication Type: Journal Article
ER  -