RT Article T1 The social creation of dependance, dependency ratios, and the elderly in the United States: a critical analysis JF Social science & medicine VO 23 IS 11 A1 Calasanti, Toni M A2 Bonanno, Alessandro 1954- LA English YR 1986 UL https://krimdok.uni-tuebingen.de/Record/1642302201 K1 Altenpflege K1 Altersabhängigkeit K1 USA