Sentence:  Some investigators have found a parallelism between remissions and return of the sympathetic reactivity of the hypothalamus to the normal level as indicated by the Mecholyl test and , conversely , between <WSD>clinical</WSD> impairment and increasing deviation of this test from the norm . 
Meaning of the word marked with <WSD> tags:  relating to a clinic or conducted in or as if in a clinic and depending on direct observation of patients