In the paper by J. R. Sowers, A. E. Pekary, J. M. Hershman,M. Kanter and J. J. DiStefano (J. Endocr. 1979, 80, 83–89)throughout the text Ultragel AcA 44 (LKG) should read UltrogelAcA 44 (LKB); and on page 86, line 4 should read: larger peakwhich coincided with -HCG.