중재 평균 치료 횟수는 15회였으며 치료 횟수가 10회 이상 20회 미만인 연구가 1편, 20회 이상 30회 미만이 1편이었다.
The average number of interventions was 15, and 1 study had more than 10 treatments and less than 20 treatments, and 1 study had more than 20 treatments and less than 30 treatments.