TY  - RPRT
TI  - New and developing methods of contraception.
AU  - J Walthall
AU  - M Goldman
AU  - M H Hutti
PY  - 1994
DO  - 10.1111/j.1745-7599.1994.tb00945.x
UR  - https://pubmed.ncbi.nlm.nih.gov/8003371/
ID  - 8003371
ER  -