Onderzoek naar alcohol-, geneesmiddelen- en drugsgebruik bij verkeersslachtoffers : een voorstudie op basis van gegevens van de politie, de GG & GD en enkele ziekenhuizen te Rotterdam.

The rate of accidents in combination with the use of alcohol or drugs in the city of Rotterdam was researched. The research was carried out with the help of the local police and hospitals. Specifications are presented for future research. The third aim of the study was to test the research procedure. The research method was found not usefull and did not give any realistic results.