Massage therapy clinics and uses shall be subject to the following conditions:
(a) Hospitals, sanitariums, nursing homes, medical clinics or the offices of physicians, surgeons, chiropractors, osteopaths, psychologists, clinical social workers or family counselors who are licensed to practice in the state shall be permitted to provide massage therapy services as an accessory use within the principal building.
(b) All massage therapists shall be licensed (where such licenses are available), and shall be certified members of the American Massage and Therapy Association or International Myomassethics Federation. Proof of such licenses or certifications shall be provided to the Administrative Official.
(c) All activities that meet the definition of an adult use or sexually-oriented business shall be prohibited.