RT Journal Article SR Electronic T1 Premenstrual syndrome JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 42 OP 42 VO 35 IS 270 A1 Katharina Dalton YR 1985 UL http://bjgp.org/content/35/270/42.1.abstract AB