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Table 1 Coding system

From: The use of pure and impure placebo interventions in primary care - a qualitative approach

Themes and Categories Subcategory (1) Subcategory (2)
1. Physicians' definition of placebo and explanation of placebo effects   
2. Experiences with placebo use   
3. Placebo use in daily practice Pure placebos Impure placebos
4. CAM as placebo treatment Phytotherapy Homeopathy
5. Communication with the patient/Ethical issues   
6. Need for guidelines   
7. Further remarks