A randomised controlled trial of proactive telephone counselling on cold-called smokers' cessation rates
Flora Tzelepis, Christine L Paul, John Wiggers, Raoul A Walsh, Jenny Knight, Sarah L Duncan, Christophe Lecathelinais, Afaf Girgis, Justine Daly
Tobacco Control Jan 2011, 20 (1) 40-46; DOI: 10.1136/tc.2010.035956