Medical FutilityWithholding TreatmentRefusal to TreatEthicistsDissent and DisputesEthics, MedicalPersistent Vegetative StateSecularismLife Support CarePersonal AutonomyEthics, NursingEthics CommitteesEthics Committees, ClinicalEthicsEthics, ResearchEuthanasia, PassiveEarly Termination of Clinical TrialsEthics ConsultationEthics, ClinicalDecision MakingEthics Committees, ResearchEthics, ProfessionalEthics, InstitutionalPrinciple-Based EthicsMoral ObligationsPaternalismEthical TheoryEthics, DentalBioethical IssuesSocial ValuesEthical Analysis