00344nas a2200097   4500000000100000008004100001100001300042245016900055300001400224490000800238       2018                            d1 aS Parker00aA UHPLC–MS/MS method for the simultaneous determination of piperacillin and tazobactam in plasma (total and unbound), urine and renal replacement therapy effluent  a324 - 3330 v148