Fig. 2From: The correlation between vitamin a status and refractory Mycoplasma Pneumoniae pneumonia (RMPP) incidence in childrenCorrelation between serum vitamin A levels and clinical finding in MPP children. a Correlation between serum adjusted-vitamin A concentrations and fever duration in MPP children (r = − 0.378, P < 0.001). b Correlation between serum adjusted-vitamin A concentrations and LOS in MPP children (r = − 0.384, P < 0.001)Back to article page