Review

[Injection therapy in cervical syndromes].

Orthopade. 1996 Nov 1;25(6):524-32.
Article

Selective nerve root blocks.

Tech Vasc Interv Radiol. 2002 Dec 1;5(4):194-200.
Comparative Study

Ultrasound-guided hip injections: a comparative study with fluoroscopy-guided injections.

Arthroscopy. 2014 Jan 1;30(1):42-6.