TY  - RPRT
TI  - Assisted conception: cumulative effectiveness.
AU  - D J Rowlands
AU  - R J Armatage
AU  - L R Nice
AU  - M G Hull
PY  - 1993
DO  - 10.1136/bmj.306.6870.146-a
UR  - https://pubmed.ncbi.nlm.nih.gov/8435634/
ID  - 8435634
ER  -