The G suit.
D000818:Animals; D001794:Blood Pressure; D002404:Catheterization; D004285:Dogs; D004618:Embolism, Air / Q000517:prevention & control; D006112:Gravitation; D006801:Humans; D006973:Hypertension / Q000517:prevention & control; D011187:Posture; D011481:Protective Clothing; D013147:Spirometry; D013523:Surgical Equipment; D013514:Surgical Procedures, Operative / Q000009:adverse effects