RT Journal Article SR Electronic T1 Music on a summer evening JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 573 OP 573 VO 29 IS 206 A1 Constance Kuenssberg YR 1979 UL http://bjgp.org/content/29/206/573.1.abstract AB