What hope is there for medical scienceto ever become a true sciencewhen the entire structure of medical knowledgeis built around the idea that there is an entity called diseasewhich can be expelled when the right drug is found?

What hope is there for medical scienceto ever become a true sciencewhen the entire structure of medical knowledgeis built around the idea that there is an entity called diseasewhich can be expelled when the right drug is found?