TY  - GEN
AU  - Law,B
TI  - Low-oestrogen oral contraceptives
SN  - 0007-1447
PY  - 1977///0315
KW  - Chemistry, Pharmaceutical
KW  - Contraceptives, Oral
KW  - Contraceptives, Oral, Synthetic
KW  - Drug Combinations
N1  - Publication Type: Letter
UR  - https://doi.org/10.1136/bmj.2.6051.1560-b
ER  -