Power and sample size calculations for longitudinal studies comparing rates of change with a time‐varying exposure
Basagaña X, Spiegelman D. Power and sample size calculations for longitudinal studies comparing rates of change with a time‐varying exposure. Statistics In Medicine 2009, 29: 181-192. PMID: 19899065, PMCID: PMC3772653, DOI: 10.1002/sim.3772.Peer-Reviewed Original Research