PT - JOURNAL ARTICLE AU - Akish Luintel AU - Tim M Young TI - Headache caused by straining AID - 10.7861/clinmedicine.13-4-414 DP - 2013 Aug 01 TA - Clinical Medicine PG - 414--414 VI - 13 IP - 4 4099 - http://www.rcpjournals.org/content/13/4/414.short 4100 - http://www.rcpjournals.org/content/13/4/414.full SO - Clin Med2013 Aug 01; 13