(<=> (Diagnostic-Resource ?A ?B)
(And (Exists (?C ?D)
(And (Evaluated-By ?A ?C)
(Inverse-Of-Clinical-Relation ?A ?C)
(Health-Condition ?A)
(*Healthcare-Operator ?C)
(Performs ?C ?D)
(Resource ?D ?B)))
(Clinical-Actor ?A ?B)
(Health-Condition ?A)
(Substance ?B)))