Response to “Uncertainties on the prognostic value of D‐dimers in COVID‐19 patients”

We appreciate the opportunity to respond to the letter from Dr Gris and colleagues. It is true there were several limitations in our study. However, we still believe that D‐dimer level at admission could be an effective and easily available predictor in patients with coronavirus disease 2019 (COVID‐19). First, selection bias was the first limitation we mentioned in the Discussion section.1.Zhang L. Yan X. Fan Q. et al.D‐dimer levels on admission...