RESULTS	In study 1 , a high degree of correlation was seen between the level of exposure following a single 0.8 mg dose of sCT and suppression of serum CTX-I , with Pearson correlation coefficients of r = -0.74 , -0.96 , and -0.78 , following doses at 08:00 , 17:00 , and 22:00 , respectively .\