30.
Weinberger B, Keller M, Putzer C, Breitenberger D, Koller B, Fiegl S, Moreno-Villanueva M, Bernhardt J, Franceschi C,Voutetakis K, Gonos ES, Hurme M, Sikora E, Toussaint O, Debacq-Chainiaux F, Grune T, Breusing N, Bürkle A, Grubeck-Loebenstein B. Protection against tetanus and diphtheria in Europe: The impact of age, gender and country of origin based on data from the MARK-AGE Study. Exp Gerontol. 2018; 105: 109-112.