Estimated activities were 0.167 ( 95 % confidence interval [ CI ] , 0.075-0 .257 ) for B-Pa-Z , 0.151 ( 95 % CI , 0.071-0 .232 ) for standard treatment , 0.124 ( 95 % CI , 0.035-0 .214 ) for B-Z-C , 0.115 ( 95 % CI , 0.039-0 .189 ) for B-Pa-Z-C , and 0.076 ( 95 % CI , 0.005-0 .145 ) for B-Pa-C .