Licensed physicians of other states and foreign countries may be permitted to enter this state for consultation with any licensed physician of this state. A physician from another state or from a foreign country shall not be permitted to establish offices in this state for the practice of his profession, either temporary or permanent, or practice under another physician's license, unless he obtains a license from the board. A license may be issued to a physician of another state or a foreign country by comity or reciprocity if the standards for medical licensure of such a state or foreign country equal those of this state, and after such state or foreign country agrees to license physicians of this state on a like basis, provided such agreements are not in conflict with this article.