1. Epidemiological Department of the Veneto Region, Padua, Italy.
2. Palliative Care Unit, Local Health Unit No. 4, Thiene, Italy.
3. Primary Care, Local Health Unit No. 7, Conegliano Veneto, Italy.
4. Palliative Care Unit, Local Health Unit No. 7, Pieve di Soligo, Italy.
5. Health and Social Services of the Veneto Region, Venice, Italy.