Author A. Ble J. Masoli H. Barry R. Winder B. Tavakoly W. Henley G. Kuchel J. Valderas D. Melzer S. Richards Year of Publication 2015 DOI 10.1186/s12877-015-0143-8 DOIGoogle ScholarBibTeXEndNote X3 XMLEndNote 7 XMLEndnote taggedMarcRIS