1. Department of Immunology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
2. The Medical Oncology Centre of Rosebank, Saxonwold, Johannesburg, South Africa
3. The Multinational Association for Supportive Care in Cancer (MASCC), Chair of the Neutropenia, Infection and Myelosuppression Study Group
4. Manchester University Foundation Trust, Manchester, United Kingdom. The Christie, University of Manchester, Manchester, UK
5. The Multinational Association for Supportive Care in Cancer (MASCC), Infection and Myelosuppression Study Group
6. Douglas B. Johnson, Department of Medicine, Vanderbilt University Medical Center and Vanderbilt Ingram Cancer Center, Nashville, Tennessee, USA
7. Department of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, USA