1. Department of Internal Medicine, Treant Zorggroep, Emmen, the Netherlands
2. Department of Hospital Pharmacy, Treant Zorggroep, Emmen, the Netherlands
3. Dutch Poisons Information Center (DPIC), University Medical Center Utrecht, Utrecht, The Netherlands
4. Intensive Care, University Medical Center Utrecht, Utrecht, The Netherlands
5. Department of Critical Care, Treant Zorggroep, Emmen, the Netherlands