RT Journal Article SR Electronic T1 Prolonged study leave in Hamburg and Vienna. JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 436 OP 437 VO 27 IS 180 A1 J. W. Tanner YR 1977 UL http://bjgp.org/content/27/180/436.abstract AB