PT - JOURNAL ARTICLE AU - John Gillies AU - Stewart Mercer AU - Graham CM Watt AU - Mairi Scott AU - Andrew Lyon TI - Questionnaire severity measures for depression AID - 10.3399/bjgp11X572337 DP - 2011 May 01 TA - British Journal of General Practice PG - 324--325 VI - 61 IP - 586 4099 - http://bjgp.org/content/61/586/324.3.short 4100 - http://bjgp.org/content/61/586/324.3.full SO - Br J Gen Pract2011 May 01; 61