RT Journal Article SR Electronic T1 Middle Ageā€”The Awkward Age JF The Journal of the College of General Practitioners JO J Coll Gen Pract FD British Journal of General Practice SP 397 OP 410 VO 3 IS 4 A1 K. Annis Gillie YR 1960 UL http://bjgp.org/content/3/4/397.abstract AB