Ключевые слова: abnormal, aged, analyzing, blood, cancer, card, care, cassette, checkup, chronic, diagnosis, disease, elder, elderly, exam, experiment, gland, health, healthcare, hospital, immunology, lab, laboratory, male, man, marker, medical, medicine, negative, normal, old, positive, prostate, prostate specific antigen, prostatitis, psa, rapid, reactive, research, result, sample, science, serology, technology, test, treatment, tumor,