German health interview and examination survey for adults (DEGS) - design, objectives and implementation of the first data collection wave oleh Scheidt-Nave Christa, Kamtsiuris Panagiotis, Gößwald Antje, Hölling Heike, Lange Michael, Busch Markus A, Dahm Stefan, Dölle Rüdiger, Ellert Ute, Fuchs Judith, Hapke Ulfert, Heidemann Christin, Knopf Hildtraud, Laussmann Detlef, Mensink Gert BM, Neuhauser Hannelore, Richter Almut, Sass Anke-Christine, Rosario Angelika, Stolzenberg Heribert, Thamm Michael, Kurth Bärbel-Maria