RT Journal Article SR Electronic T1 An 86-year-old man with unexplained right-sided headache and vision loss JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 494 OP 501 DO 10.3949/ccjm.88a.20077 VO 88 IS 9 A1 Marc Ohlhausen A1 Eden Bernstein A1 Craig D. Nielsen YR 2021 UL http://www.ccjm.org/content/88/9/494.abstract AB