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. 2017 Jul 5;17:353. doi: 10.1186/s12906-017-1856-3

Fig. 5.

Fig. 5

A front view of moxibustion. a & b, ignition-type moxibustion devices; a, real; b, sham; c & d: electrical moxibustion apparatus; c, real; d, sham. The front views of the real and sham moxibustion devices are identical