TY  - RPRT
TI  - Comments on the updated Harvard Six Cities study.
AU  - John F Gamble
AU  - Mark J Nicolich
PY  - 2006
DO  - 10.1164/ajrccm.174.6.722
UR  - https://pubmed.ncbi.nlm.nih.gov/16959922/
ID  - 16959922
ER  -