@article{paperid:1081523,
author = {M. Rahmani and Arashi, Mohammad and N. Mamode Khan and Y. Sunecher},
title = {Improved mixed model for longitudinal data analysis using shrinkage method},
journal = {Mathematical Sciences},
year = {2018},
volume = {12},
number = {4},
month = {December},
issn = {2008-1359},
pages = {305--312},
			numpages = {7},
keywords = {EM algorithm; Longitudinal data; Mixed model; Preliminary test; Stein estimation; Ridge regression},
}