2021 Volume 35 Issue 5 Pages 468-476
Chapter 9 of JPGL 2020 describes "Specificity and management for infant and preschool asthma." JPGL2020 has added a new procedure "diagnostic treatment" to the flowchart for infant and young childhood asthma revised in JGL2017. It follows "Diagnosis," "Phenotype," "Diagnostic Flowchart," "Age transition in Infant Expiratory Wheezing," and "Differential Diseases" This has made it easier to diagnose. In this paper, Chapter 9 of JGPL2020 is described.