TY - JOUR T1 - A very unusual headache JF - Clinical Medicine JO - Clin Med SP - 58 LP - 60 DO - 10.7861/clinmedicine.14-1-58 VL - 14 IS - 1 AU - Adam P Croft AU - Kurdow Nader AU - Nirmalan Arulanantham Y1 - 2014/02/01 UR - http://www.rcpjournals.org/content/14/1/58.abstract ER -