Liu, Ziyue; Cappola, Anne R.; Crofford, Leslie J.; Guo, … - In: Journal of the American Statistical Association 109 (2014) 505, pp. 108-118
The hypothalamic-pituitary-adrenal (HPA) axis is crucial in coping with stress and maintaining homeostasis. Hormones produced by the HPA axis exhibit both complex univariate longitudinal profiles and complex relationships among different hormones. Consequently, modeling these multivariate...