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Maximum absorbance and fiber diameter in relation to oral contraceptive use, smoking, and alcohol consumption. Bars denote median and interquartile range. p-Values indicate significance between users and nonusers. p-Values in brackets were obtained after adjustment for fibrinogen concentration. OC, oral contraceptive users n=5; oral contraceptive nonusers n = 18; smokers n = 10; nonsmokers n = 19; alcohol consumers n = 8; alcohol nonusers n = 22.
