title: Thymic response to endogenous and exogenous steroids in premature newborn infants.
mesh_terms: D005865:Gestational Age; D006801:Humans; D006854:Hydrocortisone / Q000494:pharmacology*; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature; D007235:Infant, Premature, Diseases / Q000000981:diagnostic imaging; D011859:Radiography; D012127:Respiratory Distress Syndrome, Newborn / Q000000981:diagnostic imaging; D013950:Thymus Gland / Q000187:drug effects*
chemical_list: D006854:Hydrocortisone