PT  - JOURNAL ARTICLE
AU  - A P Brown
AU  - H E Lawrie
AU  - A D Kennedy
AU  - J A Webb
AU  - D J Torgerson
AU  - A M Grant
TI  - Cost effectiveness of a prize draw on response to a postal questionnaire: results of a randomised trial among orthopaedic outpatients in Edinburgh.
AID  - 10.1136/jech.51.4.463
DP  - 1997 Aug 01
TA  - Journal of Epidemiology and Community Health
PG  - 463--464
VI  - 51
IP  - 4
4099  - http://jech.bmj.com/content/51/4/463.short
4100  - http://jech.bmj.com/content/51/4/463.full
SO  - J Epidemiol Community Health1997 Aug 01; 51