Timothy J A Key, Margaret Thorogood, Paul N Appleby, Michael L Burr
Key T J A, Thorogood M, Appleby P N, Burr M L.
Dietary habits and mortality in 11 000 vegetarians and health conscious people: results of a 17 year follow up
BMJ 1996; 313 :775
doi:10.1136/bmj.313.7060.775