Pretreatment with an oral contraceptive is effective in reducing the incidence of functional ovarian cyst formation during pituitary suppression by gonadotropin-releasing hormone analogues - Biljan,M.M.; Mahutte,N.G.; Dean,N.; Hemmings,R.; Bissonnette,F.; Tan,S.L. (J Assist Reprod Genet, 1998)