preferred_name: serum clozapine-to-N-desmethylclozapine ratio measurement
preferred_name_lc: serum clozapine-to-n-desmethylclozapine ratio measurement
label: serum clozapine-to-N-desmethylclozapine ratio measurement
label_lc: serum clozapine-to-n-desmethylclozapine ratio measurement