Medical FutilityWithholding TreatmentEarly Termination of Clinical TrialsEuthanasia, PassiveDissent and DisputesLife Support CareRefusal to TreatPersistent Vegetative StateEthicistsEthics, MedicalEthics, NursingSecularismEthics Committees, ClinicalPaternalismResuscitation OrdersEmpirical ResearchSocial ValuesPersonal AutonomyMoral ObligationsClinical Trials, Phase II as TopicPhysician's RoleDecision MakingCost ControlCritical IllnessIntensive CarePatientsClinical Trials, Phase III as TopicTreatment Outcome