(b) The board of visitors of the state institute for the study of malignant diseases shall meet quarterly to consider the affairs of the institute and at the last quarterly meeting in a calendar year shall prepare and transmit to the commissioner, a report of the work of the institute for the twelve months preceding such meeting.
(c) The board of visitors of each hospital in the department may meet at any time on call of the chairman. 3. Members of a board of visitors who fail to attend meetings of the board at least twice in each calendar year shall be deemed to have vacated their membership in such board of visitors, whereupon the governor shall fill the vacancies so created as provided by this chapter, unless the absence of such visitors shall be excused by the governor.