Constricting Gaps: Protocol development, implementation challenges and lessons learned for the reality map of unmet needs for Palliative Care Interventions in advanced cancer patients study in Romania and Switzerland

缩小差距：罗马尼亚和瑞士晚期癌症患者姑息治疗干预未满足需求现实地图研究的方案制定、实施挑战和经验教训