Nature-based early childhood education for child health, wellbeing and development: a mixed-methods systematic review protocol.
Avril JohnstonePaul McCrorieRita CordovilIngunn FjørtoftSusanna IivonenBoris JidovtseffFrederico LopesJohn J ReillyHilary ThomsonValerie WellsAnne MartinPublished in: Systematic reviews (2020)
PROSPERO CRD42019152582.