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. Author manuscript; available in PMC: 2017 Mar 1.
Published in final edited form as: Am J Kidney Dis. 2015 Oct 14;67(3):400–407. doi: 10.1053/j.ajkd.2015.09.005

Figure 2. Restricted cubic spline of total vitamin C intake and risk of incident kidney stones: Health Professionals Follow-up Study.

Figure 2

Model adjusted for age, BMI, thiazide use, use of calcium supplements, intake of calcium, sodium, potassium, magnesium, fructose, oxalate, phytate, animal protein, total fluid and alcohol.