Journal of clinical ultrasound : JCU
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    Randomized Controlled Trial Comparative StudyAccuracy of blind versus ultrasound-guided suprapatellar bursal injection.To compare the accuracy rates between ultrasound (US)-guided and blind knee intra-articular injection via the suprapatellar bursa. ⋯ Intra-articular injections through the suprapatellar bursa under US guidance increased the accuracy of knee joint injections.