American Journal of Respiratory and Clinical Care Medicine:
http://www.atsjournals.org/
Thorax
http://thorax.bmjjournals.com/
Chest
http://www.chestjournal.org/
European Respiratory Journal
http://erj.ersjournals.com/
http://jtcs.ctsnetjournals.org/
Pediatric Pulmonology
http://www3.interscience.wiley.com/cgi-bin/jhome/39249
Pediatric Respiratory Reviews
www.intl.elsevierhealth.com/journals/ prrv/board.cfm
The Lancet
www.thelancet.com/journals
New England Journal of Medicine
http://content.nejm.org/
Archives of Diseases in Children
http://adc.bmjjournals.com/