Objective To evaluate the distribution and drug resistance of bacteria causing neonatal pneumonia, and to provide evidences for clinic to select antimicrobial agents rationally.

Objective To observe the effect of ambroxol hydrochloride injection on the patients with neonatal pneumonia.

Newborn pneumonia clinical and low sodium,low calcium;

Objective: Elaborated newborn pneumonia(neonatal pneumonia condenses NP)X phantom study performance,is clear about the clinical diagnosis.

Objective To investigate the clinicial curativeness of magnesium sulphate in the treatment of severe pneumonia in neonates and its effect on blood gas and blood magnesium.