preferred_name: Received exogenous erythropoetin or equivalent prior to end stage renal disease therapy
preferred_name_lc: received exogenous erythropoetin or equivalent prior to end stage renal disease therapy
label: Received exogenous erythropoetin or equivalent prior to end stage renal disease therapy
label_lc: received exogenous erythropoetin or equivalent prior to end stage renal disease therapy