@misc{indiciae2be51bd35290, title = {Marginal analysis for clustered failure time data.}, author = {Shou-En Lu and Mei-Cheng Wang}, year = {2005}, doi = {10.1007/s10985-004-5640-6}, url = {https://pubmed.ncbi.nlm.nih.gov/15747590/}, note = {Source identifier: 15747590} }