RT Journal Article SR Electronic T1 Use of PHQ-9 scores to guide treatment decisions in primary care JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 405 OP 406 DO 10.3399/bjgp13X670624 VO 63 IS 613 A1 Tony Kendrick A1 Paul Little YR 2013 UL http://bjgp.org/content/63/613/405.2.abstract AB