https://dds.las.ac.cn/service/document?appId=a1vacbnPuv9qJRzJvdNXfsesj9JbIa6e&appKey=sPBA4vANLzjnW1k5eufEcc4k7dxfNraW&ts=1763029831472&signature=b1b2ca3e9338f1a5f5b2110768500edc&articleTitle=Models+for+Discrete+Longitudinal+Data&articleAuthor=Geert+Molenberghs%2C+Geert+Verbeke&publicationTitle=Models+for+Discrete+Longitudinal+Data&language=&publicationType=1&publishYear=2005&isn=9780387251448&publisher=Springer+New+York