The process includes obtaining {TAIL ~ a test spectrum} produced by {HEAD ~ a mass spectrometer} from a serum of a patient 
The process includes obtaining { TAIL ~ a test spectrum } produced by { HEAD ~ a mass spectrometer } from a serum of a patient
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH