Hyland, A

Roswell Park Cancer Institute, Department of Health Behavior, Buffalo, NY, USA

Title	Year	PMID
The reliability and predictive validity of the Heaviness of Smoking Index and its two components: findings from the International Tobacco Control Four Country study.	2010	20889480
Individual-level predictors of cessation behaviours among participants in the International Tobacco Control (ITC) Four Country Survey.	2006	16754952