found: Wolff's headache and other head pain, 1993:CIP t.p. (Stephen D. Silberstein, M.D., F.A.C.P, Co-dir., Comprehen. Head. Ctr. at the Germantown Hosp. and Med. Ctr.; assoc. prof. of neurol., Temple Univ. Sch. of Med., Philadel., Pa.)
found: Mechanisms of tension type headache, 1994:acc. mat. (Steven Silberstein, M.D.) content frame (Stephen D. Silberstein, M.D., F.A.C.P.)
found: Migraine and other headaches, c2004:E-CIP t.p. (Dr. Stephen D. Silberstein) data view (Stephen David Silberstein, b. June 6, 1942; prof. of neurol. & dir. of Jefferson Headache Ctr. at Thomas Jefferson Univ.)