RT Journal Article SR Electronic T1 Neurocirculatory Asthenia JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 42 OP 49 VO 8 IS 1 A1 Hartsock, C. L. YR 1941 UL http://www.ccjm.org/content/8/1/42.abstract AB