TY - RPRT TI - A version of the EM algorithm for proportional hazard model with random effects. AU - José Cortiñas Abrahantes AU - Tomasz Burzykowski PY - 2005 DO - 10.1002/bimj.200410141 UR - https://pubmed.ncbi.nlm.nih.gov/16450857/ ID - 16450857 ER -