. . . . "refers to the percentage of a substance, such as sodium, excreted in the urine relative to its filtered load in the kidneys." . . . "Excretion fraction (urine/feces)" . "excretion fraction of test substance" . . . . "Christos Vasileiou" . "2026-02-13T13:30:19.382Z"^^ . . . . . . . . . "RSA" . "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAz1OobdRASd9SftHrLhG905OXjv8DHndvyWzXRJ5EDFPankMSnHZPHK+g2qEeRWdonstt55CLrpTpWsVv9xRtTqPidXHbnWLBXX42iCB+EnZNoKqAVKF5GxkSR38S0uTTq3aeQJbw2kTpx6LMkspmuH95fgAI/lfqPWrxdlI98jIeHQ14UXZpiWmkkvPgC9GVgmwHiG1hB/NCA2fKCOxVodN44OfhAPtkWmPJ40IcGPSalI4HRqgLLI5PabdRk3PiG81cUngmQU1Xk6EapzkRJGenkOlGsC5L4ktEPO6LS9uBMLTMLQDtGtkrcwqg5HmeKv7Ili3vgr3LL8/GaBBOLQIDAQAB" . "HSlL3kZpCCkukmjwgWOW37ZQM7n5q4FMgEAGyQmAA92fWTyZJ7bIwXYvcvP0+A5LrESSwG4YLReN9H7uT6YiVRV+stkI9xhMk9r6UApWIRwbeooLqmCcCY8+jNe5H2YZHr5jD/YF20S8qme06NiWpCrdWUFSwomLh+yh1VswV+AGCOucf2DZRQICOIpHmxgAhkUB/LU9RY68OSN9bYYRFzU+Bg1CiegTqWlW7KF1RT4u3CBlLuK2w/wT+uklrTAA1qxvEePrWVFRDX0KgrXMi+OZ8BeD4IO6FqjBXo8RvtrIgdkDo9snlf9mZ+02KtjT4DdPJqVPqqj3q8zmlWQvKQ==" . . .