فدعما, الخفاجيي. Application the generalized estimating equation Method (GEE) to estimate of conditional logistic regression model for repeated measurements. JEAS [Internet]. 1Apr.2017 [cited 18Aug.2021];23(96):363. Available from: https://jeasiq.uobaghdad.edu.iq/index.php/JEASIQ/article/view/374