RT Journal T1 EFfects of estrogen-only treatment in postmenopausal women JF JAMA JO JAMA YR 2004 FD August 11 VO 292 IS 6 SP 683 OP 683 DO 10.1001/jama.292.6.683-a UL http://dx.doi.org/10.1001/jama.292.6.683-a AB