Measurement of 18-hydroxycorticosterone during adrenal vein sampling for primary aldosteronism - Auchus, RJ; Chandler, DW; Singeetham, S; Chokshi, N; Nwariaku, FE; Dolmatch, BL; Holt, SA; Wians, FH, Jr.; Josephs, SC; Trimmer, CK; Lopera, J; Vongpatanasin, W; Nesbitt, SD; Leonard, D; Victor, RG (J Clin Endocrinol Metab, 2007)