Correspondence: The Influence of Mass Cytometry on Farm Dust-Induced Protection Against Childhood AsthmaJu-Ching Yen1, Nian-Rong, Wu1Su-Boon Yong MD, PhD 2,3,4 Chin-Yuan Yii5 MD, Chien-Heng Lin 6,7School of Medicine, China Medical University Hospital, Taichung, TaiwanDepartment of Allergy and Immunology, China Medical University Children’s Hospital, Taichung, TaiwanResearch Center for Allergy, Immunology, and Microbiome (A.I.M.), China Medical University Hospital, Taichung, Taiwan.Department of Medicine, College of Medicine, China Medical University, Taichung, TaiwanDivision of Gastroenterology and Hepatology, Department of Internal Medicine, Landseed International Hospital, Taoyuan, TaiwanDivision of Pediatric Pulmonology, China Medical University Children’s Hospital, Taichung, Taiwan;Department of Biomedical Imaging and Radiological Science, College of Health Care, China Medical University, Taichung, Taiwan.