1. Department of MedicineDivision of Endocrinology, Diabetes, and MetabolismJohns Hopkins UniversityBaltimoreMarylandUSA
2. Department of Mechanical EngineeringVirginia Polytechnic Institute and State UniversityBlacksburgVirginiaUSA
3. Department of Mechanical EngineeringJohns Hopkins UniversityBaltimoreMarylandUSA
4. Department of Aerospace and Ocean EngineeringVirginia Polytechnic Institute and State UniversityBlacksburgVirginiaUSA