As stated, the ventilator 10 may be of the type used in {HEAD ~ the administration} of {TAIL ~ anesthesia} and therefore may include a bellows assembly intermediate the ventilator 10 and the patient 12 or, the ventilator may be of the type used in critical care situations where the ventilator directly administers to the patient 
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As stated , the ventilator 10 may be of the type used in { HEAD ~ the administration } of { TAIL ~ anesthesia } and therefore may include a bellows assembly intermediate the ventilator 10 and the patient 12 or , the ventilator may be of the type used in critical care situations where the ventilator directly administers to the patient
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