Impact of informal caregiving on older adults' physical and mental health in low-income and middle-income countries: a cross-sectional, secondary analysis based on the WHO's Study on global AGEing and adult health (SAGE)

- Lambert, Sylvie D.; Bowe, Steven J.; Livingston, Patricia M.; Heckel, Leila; Cook, Selina; Kowal, Paul; Orellana, Liliana