E-cigarettes compared with nicotine replacement therapy within the UK Stop Smoking Services: the TEC RCT

Peter Hajek, Anna Phillips-Waller, Dunja Przulj, Francesca Pesola, Katie Myers Smith, Natalie Bisal, Jinshuo Li, Steven James Parrott, Peter Sasieni, Lynne Dawkins, Louise Ross, Maciej Goniewicz, Qi Wu, Hayden J McRobbie