Figure 4From: Design of a randomised acupuncture trial on functional neck/shoulder stiffness with two placebo controls Course of needle application using extra guide tube in this study. A: Needle assembly covered with extra guide tube is placed on acupoint. B: Upper end of needle handle is tapped (tapping-in method) to penetrate skin. C: Extra guide tube is removed from needle assembly after tapping-in method. D: Needle is inserted with alternating twirling technique.Back to article page