Nierhaus, T., Pach, D., Huang, W., Long, X., Napadow, V., Roll, S., et al. (2016). Difficulties choosing control points in acupuncture research. Response: Commentary: Differential cerebral response, measured with both an EEG and fMRI, to somatosensory stimulation of a single acupuncture point vs. two non-acupuncture points. Frontiers in Human Neuroscience, 10: 404. doi:10.3389/fnhum.2016.00404.