No effect of bipolar interferential electrotherapy and pulsed ultrasound for soft tissue shoulder disorders: a randomised controlled trial
Geert J M G van der Heijden, Pieter Leffers, Pieter J M C Wolters, José J D Verheijden, Henk van Mameren, Jo P Houben, Lex M Bouter, Paul G Knipschild
Annals of the Rheumatic Diseases Sep 1999, 58 (9) 530-540; DOI: 10.1136/ard.58.9.530
