Analyzing repeated measures semi-continuous data, with application to an alcohol dependence study

A probit- log- skew-normal mixture model for repeated measures data with excess zeros, with application to a cohort study of paediatric respiratory symptoms

(2012) Sadia Mahmud et al.   BMC Medical Research Methodology

Semiparametric Mean–Covariance Regression Analysis for Longitudinal Data

(2010) Chenlei Leng et al.   JOURNAL OF THE AMERICAN STATISTICAL ASSOCIATION

Longitudinal tobit regression: A new approach to analyze outcome variables with floor or ceiling effects

(2009) Jos Twisk et al.   JOURNAL OF CLINICAL EPIDEMIOLOGY

A flexible two-part random effects model for correlated medical costs

(2009) Lei Liu et al.   JOURNAL OF HEALTH ECONOMICS

A random effects four-part model, with application to correlated medical costs

(2008) Lei Liu et al.   COMPUTATIONAL STATISTICS & DATA ANALYSIS

Use of log‐skew‐normal distribution in analysis of continuous data with a discrete component at zero

(2008) High Seng Chai et al.   STATISTICS IN MEDICINE

A multi‐level two‐part random effects model, with application to an alcohol‐dependence study

(2008) Lei Liu et al.   STATISTICS IN MEDICINE

Heavy-tailed longitudinal data modeling using copulas

(2007) Jiafeng Sun et al.   INSURANCE MATHEMATICS & ECONOMICS

A likelihood reformulation method in non‐normal random effects models

(2007) Lei Liu et al.   STATISTICS IN MEDICINE