As used in this chapter:

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(A) “Professional service” means any type of professional service that may be performed only pursuant to a license, certificate, or other legal authorization issued pursuant to Chapter 4701., 4703., 4705., 4715., 4723., 4725., 4729., 4730., 4731., 4732., 4733., 4734., 4741., 4755., or 4757. of the Revised Code to certified public accountants, licensed public accountants, architects, attorneys, dentists, nurses, optometrists, pharmacists, physician assistants, doctors of medicine and surgery, doctors of osteopathic medicine and surgery, doctors of podiatric medicine and surgery, practitioners of the limited branches of medicine specified in section 4731.15 of the Revised Code, mechanotherapists, psychologists, professional engineers, chiropractors, chiropractors practicing acupuncture through the state chiropractic board, veterinarians, physical therapists, occupational therapists, licensed professional clinical counselors, licensed professional counselors, independent social workers, social workers, independent marriage and family therapists, marriage and family therapists, art therapists, and music therapists.

(B) “Professional association” means an association organized under this chapter for the sole purpose of rendering one of the professional services authorized under Chapter 4701., 4703., 4705., 4715., 4723., 4725., 4729., 4730., 4731., 4732., 4733., 4734., 4741., 4755., or 4757. of the Revised Code, a combination of the professional services authorized under Chapters 4703. and 4733. of the Revised Code, or a combination of the professional services of optometrists authorized under Chapter 4725 of the Revised Code, chiropractors authorized under Chapter 4734 of the Revised Code to practice chiropractic or acupuncture, psychologists authorized under Chapter 4732 of the Revised Code, registered or licensed practical nurses authorized under Chapter 4723 of the Revised Code, pharmacists authorized under Chapter 4729 of the Revised Code, physical therapists authorized under sections 4755.40 to 4755.56 of the Revised Code, occupational therapists authorized under sections 4755.04 to 4755.13 of the Revised Code, mechanotherapists authorized under section 4731.151 of the Revised Code, doctors of medicine and surgery, osteopathic medicine and surgery, or podiatric medicine and surgery authorized under Chapter 4731 of the Revised Code, and licensed professional clinical counselors, licensed professional counselors, independent social workers, social workers, independent marriage and family therapists, marriage and family therapists, art therapists, or music therapists authorized under Chapter 4757 of the Revised Code.