PT  - JOURNAL ARTICLE
AU  - Samy Suissa
TI  - Number needed to treat: enigmatic results for exacerbations in COPD
AID  - 10.1183/09031936.00216514
DP  - 2015 Apr 01
TA  - European Respiratory Journal
PG  - 875--878
VI  - 45
IP  - 4
4099  - http://erj.ersjournals.com/content/45/4/875.short
4100  - http://erj.ersjournals.com/content/45/4/875.full
SO  - Eur Respir J2015 Apr 01; 45