@article{Mäkinen2009,
author = {Mäkinen, T.M. and Juvonen, R. and Jokelainen, J. and Harju, T.H. and Peitso, A. and Bloigu, A. and Silvennoinen-Kassinen, S. and Leinonen, M. and Hassi, J.},
title= {Cold temperature and low humidity are associated with increased occurrence of respiratory tract infections},
year = {2009},
doi = {10.1016/j.rmed.2008.09.011},
journal = {Respiratory Medicine },
volume = {103},
number = {3},
pages = {456--462},
}