PT  - JOURNAL ARTICLE
AU  - Emanuel, E.
TI  - A half-life of 5 years
DP  - 1975 Mar 08
TA  - Canadian Medical Association Journal
PG  - 572--572
VI  - 112
IP  - 5
4099  - http://www.cmaj.ca/content/112/5/572.short
4100  - http://www.cmaj.ca/content/112/5/572.full
SO  - CMAJ1975 Mar 08; 112