Biotech firm CSL Ltd CSL.AX declined more than a percent while hospital operator Ramsay Health Care RHC.AX lost 7.3% after it recorded a drop in its first-quarter earnings. 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.