Karen Bellenir has written at least 14 books. Their most popular book is Medical tests sourcebook : basic consumer health information about X-rays, blood tests, stool and urine tests, biopsies, mammography, endoscopic procedures, ultrasound exams, computed tomography, magnetic resonance imaging (MRI), nuclear medicine, genetic testing, home-use tests, and more ... with 0 saves with an average rating of -⭐.