1. Department of Pediatric Nursing, Medical University of Lublin, Lublin, Poland
2. Department of Clinical Immunology, Medical University of Lublin, Lublin, Poland
3. Department of Clinical Pathomorphology, Medical University of Lublin, Lublin, Poland
4. Department of Community Nursing, Medical University of Lublin, Lublin, Poland
5. Department of Pediatric Nursing, Faculty of Health Sciences, Medical University of Lublin, Lublin, Poland
6. Department of Pulmonary Diseases and Children Rheumatology, Medical University of Lublin, Lublin, Poland