Fig. 2From: Serum LDH: a potential surrogate to chest radiograph in pediatric Covid-19 patients to reduce radiation exposureA 17-year-old girl with COVID-19 pneumonia based on positive RT-PCR test who presented with cough and rhinorrhea for 2 days. Frontal chest radiograph shows no radiographic abnormality. The patient’s serum biochemical parameters show a mildly elevated LDH level of 151 U/LBack to article page