(1) Applications and other personal information submitted by applicants, except to the applicant, staff, and the board;
(2) Information, favorable or unfavorable, submitted by a reference source concerning an applicant, except to the staff and board;
(3) Examination questions and other examination materials, except to the staff and the board; and
(4) The deliberations of the board with respect to an application, an examination, a complaint, an investigation, or a disciplinary proceeding, except as may be contained in the official board minutes.