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Chronic Conditions and Sleep Problems among Adults Aged 50 years or over in Nine Countries: A Multi-Country Study
Koyanagi A,
Garin N,
Olaya B,
Ayuso-Mateos JL,
Chatterji S,
et al.
(2014)
Chronic Conditions and Sleep Problems among Adults Aged 50 years or over in Nine Countries: A Multi-Country Study.
PLOS ONE 9(12): e114742.
https://doi.org/10.1371/journal.pone.0114742