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Diastolic blood pressure response to metoprolol in hypertensive patients is predicted by ADRB1 diplotype. Diplotype is defined by the SNPs at codons 49 and 389. SR = Ser49Arg389; SG = Ser49Gly389; GR = Gly49Arg389. Reproduced from Clinical Pharmacology and Therapeutics 37, 44–52 (2003).
