Total energy expenditure in adults aged 65 years and over measured using doubly-labelled water: international data availability and opportunities for data sharing.
Judi PorterKay NguoSimone GibsonCatherine E HugginsJorja CollinsNicole J KellowHelen TrubyPublished in: Nutrition journal (2018)
The protocol was registered with the International Prospective Register of Systematic Reviews (PROSPERO), registration number CRD42016047549 .