Studies were excluded for the following reasons: (1) editorials, reviews, qualitative studies, commentary, conference abstracts, or presentations
No pipe can be compared to the next : each pipe has been crafted differently
Fois, Christer Janson, Deborah Jarvis, Rain Jgi, Bndicte Leynaert, Dennis Nowak, Vivi Schlnssen, Isabel Urrutia-Landa, Giuseppe Verlato, Simona Villani, Torsten Zuberbier et Cosetta Minelli, Time and age trends in smoking cessation in Europe , PLoS ONE , vol
TWO BRANDS
Wrap-up and what to try next The pipe vs joint question doesn't have a single right answer, but it does have a right answer for your situation
Natl Estimates