TY - RPRT TI - Gravity and the circulation: "open" vs. "closed" systems. AU - J W Hicks AU - H S Badeer PY - 1992 DO - 10.1152/ajpregu.1992.262.5.r725 UR - https://pubmed.ncbi.nlm.nih.gov/1590467/ ID - 1590467 ER -