It shall constitute unprofessional conduct for any licensee to violate, to attempt to violate, directly or indirectly, to assist in or abet the violation of, or to conspire to violate any provision or term of Article 18 (commencing with Section 2400), of the Moscone-Knox Professional Corporation Act (Part 4 (commencing with Section 13400) of Division 3 of Title 1 of the Corporations Code), or of any rules and regulations duly adopted under those laws.