@article{articlec6857a0a,
title   = {Sputum induction as a research tool for the study of human respiratory mucus},
author = {Albertini-Yagi, Claudia S. and Oliveira, Regiani C. and Vieira, Joaquim Edson and Negri, Elnara M. and Oliveira, Luciana R. de and Saldiva, Paulo Hilário Nascimento and Lorenzi-Filho, Geraldo},
year = {2005},
doi = {10.1016/j.resp.2004.08.010},
journal   = {Respiratory Physiology & Neurobiology}
}