Streptococcus pneumoniae Serogroups 15 and 33: An Increasing Cause of Pneumococcal Infections in Children in the United States After the Introduction of the Pneumococcal 7-Valent...

Gonzalez, Blanca E.; Hulten, Kristina G.; Lamberth, Linda; More

Pediatric Infectious Disease Journal . 25(4):301-305, April 2006.