About the Authors

Helena Legido-Quigley

Helena.legido-quigley@lshtm.ac.uk

Affiliation Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, United Kingdom

Paul Anthony Camacho Lopez

Affiliation Fundación Oftalmológica de Santander, Bucaramanga, Colombia

Dina Balabanova

Affiliation Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, United Kingdom

Pablo Perel

Affiliation Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, United Kingdom

Patricio Lopez-Jaramillo

Affiliations Fundación Oftalmológica de Santander, Bucaramanga, Colombia, Instituto Masira, Medical School, Universidad de Santander, Bucaramanga, Colombia

Robby Nieuwlaat

Affiliation Population Health Research Institute, Hamilton, Ontario, Canada

J-D Schwalm

Affiliation Population Health Research Institute, Hamilton, Ontario, Canada

Tara McCready

Affiliation Population Health Research Institute, Hamilton, Ontario, Canada

Salim Yusuf

Affiliation Population Health Research Institute, Hamilton, Ontario, Canada

Martin McKee

Affiliation Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HLQ, PACL DB PP PLJ RN JDS TM SY MM. Performed the experiments: HLQ PACL. Analyzed the data: HLQ PACL. Contributed reagents/materials/analysis tools: HLQ PACL DB PP PLJ RN JDS TM SY MM. Wrote the paper: HLQ PACL DB PP PLJ RN JDS TM SY MM.