{Reference Type}: Letter {Title}: Methemoglobinemia Outbreak in a Neonatal ICU and Maternity Ward. {Author}: Takahashi S;Ishige T;Takizawa T; {Journal}: N Engl J Med {Volume}: 389 {Issue}: 25 {Year}: 2023 Dec 21 {Factor}: 176.079 {DOI}: 10.1056/NEJMc2308125