1. Center for Health & Nature, Houston, TX, USA
2. Center for Outcomes Research, Houston Methodist, Houston, TX, USA
3. Division of Cardiovascular Medicine, Harrington Heart and Vascular Institute, University Hospitals and School of Medicine, Case Western Reserve University, Cleveland, OH, USA
4. Houston Parks Board, Houston, TX, USA
5. Texas A&M University School of Public Health, College Station, TX, USA
6. Division of Cardiovascular Prevention and Wellness, Department of Cardiology, Houston Methodist DeBakey Heart & Vascular Centre, Houston, TX, USA