In Fisher v. Ohio University (1992), 63 Ohio St. 3d 484, 589 N. E. 2d 13, the Ohio Supreme Court held: "The provision of former R.C. 2305.16 allowing a limitations period to be tolled during the time a claimant was confined in an institution or hospital under a diagnosed condition or disease that rendered the claimant of unsound mind is applicable only when the claimant presents evidence substantiating he or she was of unsound mind and the disease or condition: (1) was determined by a psychiatrist or licensed physician who treated the claimant during his confinement to have rendered him of unsound mind, or (2) is generally accepted by the medical community as one causing unsound mind." Syllabus by the court.