People who have used electronic cigarettes say they were a bit helpful to quit smoking, but the devices were described as unreliable, Swiss researchers say. Study author Jean-Francois Etter of the University of Geneva in Switzerland says the study involved surveying 81 users and former users of e-cigarettes. Ninety-five percent say the e-cigarettes were at least somewhat helpful to stop smoking. However, some said they were concerned about poten ... Jump to full article >>