Ulfert Hapke

The design and methods of the mental health module in the German Health Interview and Examination Survey for Adults (DEGS1‐MH)

Michael Wagner, Simon Mack, Michael Höfler, 2013, International journal of methods in psychiatric research.

Relation among stage of change, demographic characteristics, smoking history, and nicotine dependence in an adult German population.

Ulrich John, Christian Meyer, H. Rumpf, 2003, Preventive medicine.

Psychometric properties of the 'Processes of Change' scale for alcohol misuse and its short form (POC-20).

Ulrich John, Christian Meyer, Hans-Jürgen Rumpf, 2006, Addictive behaviors.

Screening for alcohol use disorders and at-risk drinking in the general population: psychometric performance of three questionnaires.

Ulrich John, Christian Meyer, Hans-Jürgen Rumpf, 2002, Alcohol and alcoholism.

Changes in the "stages of change" as outcome measures of a smoking cessation intervention: a randomized controlled trial.

Ulrich John, Anja Schumann, Christian Meyer, 2006, Preventive medicine.

Subtyping general population smokers not intending to quit by stages to reduce smoking.

Ulrich John, Anja Schumann, Christian Meyer, 2004, Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco.

Self‐reported utilization of mental health services in the adult German population – evidence for unmet needs? Results of the DEGS1‐Mental Health Module (DEGS1‐MH)

Simon Mack, Michael Höfler, Wolfgang Gaebel, 2014, International journal of methods in psychiatric research.

Attitudes towards smoking policies and tobacco control measures in relation to smoking status and smoking behaviour.

Ulrich John, Anja Schumann, Christian Meyer, 2006, European journal of public health.