The regular practice of medicine in a licensed general or specialized hospital having less than five physicians and surgeons on the medical staff, which does not have rules established by the board of directors thereof to govern the operation of the hospital, which rules include, among other provisions, all of the following, constitutes unprofessional conduct:
(a) Provision that membership on the medical staff shall be restricted to physicians and surgeons and other licensed practitioners competent in their respective fields and worthy in professional ethics. In this respect the division of profits for professional fees in any manner shall be prohibited and any such division shall be cause for exclusion from the staff.
(b) Provision that adequate and accurate medical records be prepared and maintained for all patients.