My rating for Dr. Capperell is outstanding. I had a deadly Citrobacter Koseri gram rod negative infection in my chest after an open heart operation. Bob visited me every day, reviewed the latest tests and searched the computer every day to try to find an improved antibiotic combination to treat my infection. Finally a plastic surgen opened up my sternum. That operation in combination with Bob's management of the antibiotics saved my life. I am very grateful for his dedicated effort.