Secondhand smoke risk perception and smoke-free rules in homes: a cross-sectional study in Barcelona (Spain)
Cristina Lidón-Moyano, Jose M Martínez-Sánchez, Marcela Fu, Montse Ballbè, Juan Carlos Martín-Sánchez, Cristina Martínez, Esteve Fernández
BMJ Open Jan 2017, 7 (1) e014207; DOI: 10.1136/bmjopen-2016-014207