A process of determining whether a patient with a disease or disorder will be responsive to a drug, used to treat the disease or disorder, including obtaining a test spectrum produced by a mass spectrometer from {HEAD ~ a serum} produced from {TAIL ~ the patient} 
A process of determining whether a patient with a disease or disorder will be responsive to a drug , used to treat the disease or disorder , including obtaining a test spectrum produced by a mass spectrometer from { HEAD ~ a serum } produced from { TAIL ~ the patient }
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