Dear friends, I have been asked to review a text alleging to circumvent the problem of errors in measurement of independent variable by a Passing-Bablok regression. I have found a reference from 1988 which I'm unable to access. I wonder if anyone has experience with this method and know an accessible reference or how to do it in R since I have access to the data in question. I have been unable to find other direct references on the net but the procedure seem to be used now and then in clinical chemistry. Best wishes Troels Ring Aalborg, Denmark