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Effect of oxalate on calcium uptake. Calcium uptake in the presence and absence of oxalate is expressed as percent of CTL (no oxalate) for all four fractions: CTL SGF1 (light cross-hatched bars), CTL ER (light solid bars), CHX SGF1 (dark cross-hatched bars), and CHX ER (dark solid bars). Plus oxalate samples contained 2.5 mM potassium oxalate. Error bars represent SD and n = 3.
