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Cyclooxygenase-1 (COX-1) expression (A) is similar in both IPAH (3 representative samples from a total n = 13; lanes 1, 2, and 3) and control (3 representative samples from a total n = 12; lanes 3, 4, and 5) platelets, and COX-2 mRNA expression was not detected in either (B). The housekeeping gene GAPDH was used to normalize (C).
