Agricultural Marketing and Information Systems Department, Center of Agricultural Planning and Development, Institute of National Planning, Cairo, Egypt.

Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005, Uttar Pradesh. India.

Software Developer and Computational Disease Modeler, Jacob Barhak - Sole Proprietor, Austin, USA

Department of Psychology, University of Houston, Houston, Texas (Ms Liu, Mr Van Egdom, Dr Spitzmueller); Aberdeen Business School, Robert Gordon University, Aberdeen, Scotland (Dr Flin); Faculty of Business Administration, Memorial University of Newfoundland, St John's, Canada (Dr Spitzmueller); College of Medicine, University of Houston, Houston, Texas (Dr Adepoju); and Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas (Dr Krishnamoorti).

Dalla Lana School of Public Health (Tuite), University of Toronto, Toronto, Ont.; Department of Population Medicine (Greer), University of Guelph, Guelph, Ont.

Faculty of Public Health, Khon Kaen University, Khon Kaen, Thailand, Faculty of Science and Technology, Norwegian University of Life Sciences, Norway

Academic Department of Military Rehabilitation, Defence Medical Rehabilitation Centre, Stanford Hall, Loughborough, Nottinghamshire, UK.; Headquarters Army Medical Services (HQ AMS), Camberley, Surrey, UK.; School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK.; Academic Department of Military Medicine, Birmingham, UK.; Oxford University Hospitals NHS Foundation Trust, Oxford, Oxfordshire, UK.; Royal Centre for Defence Medicine, Birmingham, UK.; Headquarters Defence Primary Healthcare, Lichfield, Staffordshire, UK.; Defence Medical Rehabilitation Centre, Stanford Hall, Loughborough, Nottinghamshire, UK.; National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, UK.; Royal Brompton Hospital, London, UK.; Academic Department of Military Medicine, Birmingham, UK david.holdsworth@ouh.nhs.uk.

Department of Cardiovascular Sciences, Rome, Italy.; Division of Internal Medicine, Rome, Italy.; Department of Medical and Surgical Sciences, Rome, Italy.; Division of Infectious Diseases, Rome, Italy.; Division of Geriatrics, Fondazione Policlinico Universitario A. Gemelli IRCCS, Universita Cattolica del Sacro Cuore School of Medicine, Rome, Italy.

Department of Public Health and Family Medicine, Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan.; Department of Pharmacology, Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan.; Department of Obstetrics and Gynecology, Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan.