Focussed Extracorporeal Shockwave Therapy for Tennis Elbow - Sabeti, M; Dorotka, R; Goll, A; Theodor Funovics, P; Schmidt, M; Trieb, K; Schatz, K D; Kotz, R (Physikalische Medizin, Rehabilitationsmedizin, Kurortmedizin, 2008)