Mo. Rev. Stat. § 329.170
Current with changes from the 2023 Legislative Session
Nothing in this chapter shall prohibit service in case of emergency or domestic administration, or services by persons authorized under the laws of this state to practice medicine, surgery, dentistry, chiropody, osteopathy, chiropractic nursing or services by barbers lawfully engaged in the performance of the usual and ordinary duties of their vocation.
§ 329.170, RSMo
RSMo 1939 § 9828