Frailty and health status of older individuals in three European countries: The COURAGE cross-sectional study
Tyrovolas, Stefanos; Garin Escriva, Noe; Luis Ayuso-Mateos, Jose; Chatterji, Somnath; Koyanagi, Ai; Miret, Marta; Victoria Moneta, Maria; Olaya, Beatriz; Tobiasz-Adamczyk, Beata; Koskinen, Seppo; Leonardi, Matilde; Maria Haro, Josep (2018)