How Long I Have Before I Have Renal Failure with Stage 4 FSGS

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How long I have before I have renal failure with stage 4 FSGS? For some patients, they develop renal failure in several weeks, while for some patients, they do http://ift.tt/1XC4J6Z How Long I Have Before I Have Renal Failure … http://ift.tt/1R6G5cX
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