1. Division of Pediatric Infectious Diseases, Children’s Hospital of Philadelphia , Philadelphia, Pennsylvania , USA
2. Center for Pediatric Clinical Effectiveness, Children’s Hospital of Philadelphia , Philadelphia, Pennsylvania , USA
3. Division of Infectious Diseases, Cincinnati Children’s Hospital and Medical Center , Cincinnati, Ohio , USA
4. Unit of Mycology, Statens Serum Institut , Copenhagen , Denmark
5. Department of Clinical Microbiology, Rigshospitalet , Copenhagen , Denmark
6. Department of Clinical Medicine, University of Copenhagen , Copenhagen , Denmark
7. Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine at the University of Pennsylvania , Philadelphia, Pennsylvania , USA