Johnsson Hans, and Ewald Uwe. “The Incidence of Neonatal Pneumococcal Septicemia in Sweden 1991–92: The Result of a National Survey”. Upsala Journal of Medical Sciences 99, no. 2 (July 19, 1994): 161-166. Accessed March 28, 2024. https://ujms.net/index.php/ujms/article/view/6717.