1. A comparison of two primary care trials on tennis elbow: issues of external validity. Issue 10 (30th March 2005) Authors: Smidt, N; Lewis, M; Hay, E M; Van der Windt, D A W M; Bouter, L M; Croft, P Journal: Annals of the rheumatic diseases Issue: Volume 64:Issue 10(2005) Page Start: 1406 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗