Methodological challenges in harmonisation of the variables used as indicators of social capital in epidemiological studies of ageing - results of the ATHLOS project

Zawisza, Katarzyna; Wozniak, Barbara; Tobiasz-Adamczyk, Beata; Galas, Aleksander; Gine-Vazquez, Iago; Sanchez-Niubo, Albert; Ayuso-Mateos, Jose Luis; Koskinen, Seppo; Leonardi, Matilde; Bobak, Martin; Haro, Josep Maria (2021)