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Linear relationships between p24 and ddPCR assays. Each data point is the cumulative value of (A) one-step ddPCR or (B) two-step ddPCR, or (C) one-step automated ddPCR on x-axis versus Alliance p24 on y-axis. (D) One-step ddPCR on x-axis versus two-step ddPCR on y-axis. Cumulative values calculated by taking the sum of days 3 through 14 of explant culture, adjusted for biopsy weight, and log transformed.
