PT  - JOURNAL ARTICLE
AU  - Jeffrey M Haynes
TI  - A Positive Methacholine Challenge Test in the Absence of Symptoms
DP  - 2007 Jun 01
TA  - Respiratory Care
PG  - 759--762
VI  - 52
IP  - 6
4099  - http://rc.rcjournal.com/content/52/6/759.short
4100  - http://rc.rcjournal.com/content/52/6/759.full