Global miners BHP Group BHP.AX, Rio Tinto RIO.AX and Fortescue Metals Group FMG.AX gained between 1% and 3.5%. Nov 11 (Reuters) - Australian shares on Thursday extended losses for a fourth session, with healthcare and energy firms weighing the most, as growing U.S. inflationary risks stoked concerns of an earlier-than-expected policy normalisation by the Federal Reserve. All three major U.S. stock indexes ended in negative territory overnight, extending their losses and adding to Tuesday's sell-off as surging consumer prices raised worries of a protracted wave of red hot inflation.