@misc{indiciaeeeb094238d28, title = {[Experimental epidemiology-intervention studies on the development of preventive programs].}, author = {S Böthig and J Knappe and W Barth and G Strube}, year = {1972}, url = {https://pubmed.ncbi.nlm.nih.gov/4635445/}, note = {Source identifier: 4635445} }