3편의 문헌을 통합한 결과, 대상자 수는 구강 자극 요법을 적용한 실험군이 69명, 적용하지 않은 대조군이 68명이었다.
As a result of incorporating three documents, the number of subjects was 69 in the experimental group to which oral stimulation was applied, and 68 in the control group.