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In the article entitled "Biochemical Classifications of Diagnostic Subgroups and D-Type Scores," published in the March 1989 issue of the Archives (1989; 46:269-271), errors appeared in Table 1. Values for vanillylmandelic acid, normetanephrine, and norepinephrine in normal controls were incorrectly converted to Système International units. The values should have all been reported in μmo1/24 h. The corrected values appear in the following new Table 1:*MHPG indicates 3-methoxy-4-hydroxyphenylglycol; VMA, vanillylmandelicacid; NMN, normetanephrine; and CV, coefficient of variation.
CORRECTION. Arch Gen Psychiatry. 1989;46(7):616. doi:10.1001/archpsyc.1989.01810070042007
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