One of the directors of a medical corporation (excluding a medical corporation prescribed in the following paragraph) is the president, who is to be elected from among the directors who are physicians or dentists; provided, however, that in the case where approval has been obtained from the prefectural governor, the president may be elected from among the directors who are neither physicians nor dentists.
In the case of a medical corporation that has one director with approval under the proviso of Article 46-5, paragraph (1), the relevant director is deemed to be the president with regard to the application of the provisions of this Chapter (excluding paragraph (3) of the following Article).
第四十六条の五第一項ただし書の認可を受けて一人の理事を置く医療法人にあつては、この章（次条第三項を除く。）の規定の適用については、当該理事を理事長とみなす。
Read this with the articles around it