Conflict of Interests
Natthakarn Chiranthanut and Supanimit Teekachunhatean were members of the working group that developed Suandok massage. Supanimit Teekachunhatean also involves in conducting of a nonprofit training course of Suandok massage held by Faculty of Medicine, Chiang Mai University. All authors do not have a direct financial relation with the commercial identities mentioned in the paper.