Advance letters as a way of reducing non-response in a National Health Telephone Survey: Differences between listed and unlisted numbers

by Elena von der Lippe, Patrick Schmich, Cornelia Lange
Published 2011-12-01

Risk Factors for Sporadic Non-Pregnancy Associated Listeriosis in Germany-Immunocompromised Patients and Frequently Consumed Ready-To-Eat Products.

by Karina Preußel, Astrid Milde-Busch, Patrick Schmich, Matthias Wetzstein, Klaus Stark, Dirk Werber
Published 2015-01-01

Mixing modes in a population-based interview survey: comparison of a sequential and a concurrent mixed-mode design for public health research

by Elvira Mauz, Elena von der Lippe, Jennifer Allen, Ralph Schilling, Stephan Müters, Jens Hoebel, Patrick Schmich, Matthias Wetzstein, Panagiotis Kamtsiuris, Cornelia Lange
Published 2018-01-01