Tell Us™: a Web-based tool for improving communication among patients, families, and providers in hospice and palliative care through systematic data specification, collection, and use. - Dy SM; Roy J; Ott GE; McHale M; Kennedy C; Kutner JS; Tien A; Dy, Sydney M; Roy, Jayashree; Ott, Geoffrey E; McHale, Michael; Kennedy, Christine; et al. (Journal of Pain & Symptom Management, 2011)