PT  - JOURNAL ARTICLE
AU  - Barratt, Alexandra L.
AU  - Wyer, Peter C.
AU  - Guyatt, Gordon
AU  - Simpson, Judy M.
TI  - NNT for studies with long-term follow-up
AID  - 10.1503/cmaj.1041709
DP  - 2005 Mar 01
TA  - Canadian Medical Association Journal
PG  - 613--615
VI  - 172
IP  - 5
4099  - http://www.cmaj.ca/content/172/5/613.2.short
4100  - http://www.cmaj.ca/content/172/5/613.2.full
SO  - CMAJ2005 Mar 01; 172