1. Office of Telemedicine, Johns Hopkins Health System, Baltimore, Maryland, USA.
2. Johns Hopkins School of Nursing, Baltimore, Maryland, USA.
3. Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.
4. Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
5. Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
6. Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.