American Medical Society for Sports Medicine (AMSSM) position statement: interventional musculoskeletal ultrasound in sports medicine.
Finnoff JT, Hall MM, Adams E, Berkoff D, Concoff AL, Dexter W, Smith J. American Medical Society for Sports Medicine (AMSSM) position statement: interventional musculoskeletal ultrasound in sports medicine. Br J Sports Med. 2015 Feb; 49(3):145-50.