| 1st Author | Sample size/sex | Intervention | Total Number of treatment/ Treatment Period |
| Go NG12) | Male/9Female/11 | Subcision* with 26-31G steriled needle | 4–11 Times/at 2-3 months interval |
| Lee HK14) | Male/43Female/52 | Subcision with 24-26G steriled needle | uninformed/less than 5 Months : 315-9 Months : 51more than 10 Months : 13 |
| Sung SH16) | Male/2Female/3 | Subcision with 26 steriled needle | 1 Time/1 day |
| Kim HY17) | Male/10Female/17 | Subcision with 26 steriled needle | 3 Times/12 weeks |
| Heo JE18) | Male/1Female/5 | Subcision with 24-26 steriled needle | uninformed |
| Baek SC19) | Male/2Female/3 | Subcision with 25-27 steriled needle | 5–9 Times/at 2-3 weeks interval |
| Lee KS20)) | Male/4Female/1 | Subcision with 26 steriled needle | 3-10 Times/6-26 Months |