RT Journal Article SR Electronic T1 When does an adult with headaches need central nervous system imaging? JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 719 OP 720 DO 10.3949/ccjm/81a.14040 VO 81 IS 12 A1 Jason Post A1 Christopher Moriates YR 2014 UL http://www.ccjm.org/content/81/12/719.abstract AB