RT Journal Article SR Electronic T1 Delay in the presentation of patients to hospital is the main factor for failure to adhere to the Royal College of Physicians' guidelines in the management of suspected subarachnoid haemorrhage JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 511 OP 512 DO 10.7861/clinmedicine.6-5-511 VO 6 IS 5 A1 GS Chu A1 U Kugathasan A1 PK Myint YR 2006 UL http://www.rcpjournals.org/content/6/5/511.abstract AB