In the Viewpoint titled “Inform Parents, Protect High School Blood Donors”1 published online March 13, 2017, in JAMA Pediatrics, reference 6 was inadvertently omitted during editing. The reference citation should have appeared after the word “protection” in the fourth sentence of the last paragraph. The reference should have read “Bloch EM, Mast AE, Josephson CD, Klein HG, Eder AF. Teenage blood donors: are we asking too little and taking too much? [published online March 3, 2017]. Pediatrics. doi:10.1542/peds.2016-2955.”