Dr. Nicholson has a broad background in clinical and epidemiologic pediatric research, including advanced training in biostatistics and protocol development and experience conducting prospective studies requiring patient enrollment. These skills were obtained through her fellowship in Pediatric Gastroenterology, Hepatology, and Nutrition and acquiring a Master's of Public Health in Epidemiology at Vanderbilt University. As an Associate Professor of Pediatrics in Pediatric Gastroenterology, Hepatology, and Nutrition, she has established the Pediatric C. difficile Clinic, which cares for children with refractory and recurrent C. difficile disease. She has also established the Pediatric Fecal Microbiota Transplantation (FMT) program at Monroe Carell Jr. Children's Hospital at Vanderbilt and established herself as an expert in the treatment of C. difficile infections nationally as the co-PI on a multi-center consortium evaluating FMT in pediatric patients with recurrent C. difficile. She received the North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition (NASGPHAN) Young Faculty Clinical Investigator award for this work and has been made the NASGPHAN FMT Special Interest Group co-chair. She has had continuous NIH funding since 2012, including NIAID K23 and U19 awards, and over 40 peer-reviewed publications.

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