1. Ischial bursitis;Waldman,2019
2. Ischial bursitis;Waldman,2016
3. Ischial bursitis injection technique;Waldman,2017
4. Ultrasound guided injection technique for ischial bursitis pain;Waldman,2020
5. Ultrasound-guided ischial bursa injection: technique and positioning considerations;Wisniewski;PM&R,2014