TY  - RPRT
TI  - Analysis of ectopic pregnancy data using marginal and conditional models.
AU  - A Hadgu
AU  - G Koch
AU  - L Westrom
PY  - 1997
DO  - 10.1002/(sici)1097-0258(19971115)16:21<2403::aid-sim682>3.0.co;2-8
UR  - https://pubmed.ncbi.nlm.nih.gov/9364650/
ID  - 9364650
ER  -