This is the ValueSet that contains all the codes in Phương pháp vô cảm — Vietnam Anesthesia Method ValueSet (http://fhir.hl7.org.vn/core/ValueSet/vn-anesthesia-method-vs) and Phương pháp vô cảm — Vietnam Anesthesia Method ValueSet (http://fhir.hl7.org.vn/core/ValueSet/vn-anesthesia-method-vs). E.g. what you have to deal with if you get resources containing codes in either of them