RT Journal Article SR Electronic T1 The evolution of depressive symptoms in endogenous depression. JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 251 OP 257 VO 15 IS 4 A1 Watts, C. A. YR 1968 UL http://bjgp.org/content/15/4/251.abstract AB