Medical FutilityWithholding TreatmentRefusal to TreatDissent and DisputesEthicistsPersistent Vegetative StateSecularismLife Support CareEthics, MedicalPersonal AutonomyEarly Termination of Clinical TrialsEuthanasia, PassiveDecision MakingNurse PractitionersGeneral PractitionersFamily PracticeEthics, Nursing