https://www.selleckchem.com/pr....oducts/epalrestat.ht
e authorities concerned and there is a need to establish public guidelines regarding the use and correct disposal of pharmaceuticals.Biomarkers of interest in urine, serum, or other biological matrices often have an assay limit of detection. When concentration levels of the biomarkers for some subjects fall below the limit, the measures for those subjects are censored. Censored data due to detection limits are very common in public health and medical research. If censored data from a single exposure group follow a normal distribution