
High doses of inhaled corticosteroids during the first trimester of pregnancy and congenital malformations
Keywords: کورتیکواستروئیدهای استنشاقی; Asthma; pregnancy; inhaled corticosteroids; congenital malformations; cohort study; ED; Emergency department; ICD-9; International Classification of Diseases, Ninth Revision; ICS; Inhaled corticosteroid; ISQ; Institut de la statistique du Québec; MED-ECH