wine intake and bc

Met with onc today who says that more than 5 oz/day -- 25 oz/week -- wine increases chance of bc recurrance by 40%. Am post menopausal. Tumor was 7mm; Her2 pos w/+3; node neg. Had lumpectomy May 7 but onc says margins were not clear 'enough' -- .228cm -- and that I need more surgery. And, that I should cut out the wine w/dinner altogether. Really?? Looking for stats and studies. Anybody know where to send me? Thanks. Jane T.