Clinical Chemistry, Vol 23, 2343-2343, Copyright © 1977 by the American Association for Clinical Chemistry

Corrections

Volume 19

p 152: There are errors in the placement of two closed parentheses in the equation that follows equation 6. It should read K([Ag_i] - [Ag_i](B/F)/(B/F + 1)) x ([Ab_i - [Ag_i](B/F)/(B/F + 1)) = [Ag_i](B/F)/(BfF + 1) These errors were pointed out by Drs. C. L. Partain (Imaging Division) and John E. Hammond (RIA-Endocrine Laboratory) of the School of Medicine, the University of North Carolina, Chapel Hill, N. C., who supplied a detailed mathematical derivation of the equation, which is available on request either directly to them or to the Editorial Office of this journal.

The first equation in the right-hand column was corrected in a subsequent reprinting. It should read: logit (Y) = log_e [Y/100 - Y] = a + b log_aX. This error was detected by D. Rodbard (NIH) and E. A. Sugden (Animal Diseases Research Institute, Hull, Quebec).

Volume23

p 1398: The last two sentences in the paragraph on Tumor Extracts are incomplete. The sentence should read

"The tissue is homogenized and then centrifuged to give a clear supernatant fluid, which is deproteinized either by precipitation with sulfosalicylic acid (50 g/liter) or by passage through an ultraffiter that retains compounds with molecular weight exceeding 1000 (Type PSAC; Millipore Corp.). Both procedures gave identical chromatograms. The deproteinized extract is applied directly to the column."

p 515: footnote 1: Remove the words "current address." Mr. Canos was (and is) at this address when the work was begun.