TY - RPRT TI - Multivariate parametric random effect regression models for fecundability studies. AU - R Ecochard AU - D G Clayton PY - 2000 DO - 10.1111/j.0006-341x.2000.01023.x UR - https://pubmed.ncbi.nlm.nih.gov/11129457/ ID - 11129457 ER -