Intersection of http://smart.who.int/hiv/ValueSet/HIV.C.DE91 and http://smart.who.int/hiv/ValueSet/HIV.C.DE91
This is the ValueSet that contains codes in both Preferred PEP backbone regimen ValueSet (http://smart.who.int/hiv/ValueSet/HIV.C.DE91) and Preferred PEP backbone regimen ValueSet (http://smart.who.int/hiv/ValueSet/HIV.C.DE91).