Comment on

• The use of transcranial ultrasonography to predict stroke in sickle cell disease.

  Adams R, McKie V, Nichols F, Carl E, Zhang DL, McKie K, Figueroa R, Litaker M, Thompson W, Hess D. Adams R, et al. N Engl J Med. 1992 Feb 27;326(9):605-10. doi: 10.1056/NEJM199202273260905. N Engl J Med. 1992. PMID: 1734251