Results of 6 weekly intravesical BCG instillations on the treatment of superficial bladder tumors - Kavoussi,L.R.; Torrence,R.J.; Gillen,D.P.; Hudson,M.A.; Haaff,E.O.; Dresner,S.M.; Ratliff,T.L.; Catalona,W.J. (J Urol, 1988)