Objective To investigate the pathogens and resistance of stroke-associated lower respiratory tract infection in elderly patients.

Study on the treating effect of Qidong Yixin oral liquid on myocardial damage of children with lower respiratory tract infection;

Antibiotic susceptibility of clinical isolates from lower respiratory tract infection in patients in respiratory ward;

Lower respiratory tract infection by pseudomonas aeruginosa in severe brain trauma:an analysis of drug sensitivity status;

Curative effect of domestic meropenem for treatment of senile patients with lower respiratory infection;

The bacterical strains distribution and antimicrobial susceptibility analysis of 98 cases of the gerontism tuberculosis offiliate lower respiratory infection;

Clinical analysis of 198 elderly patients with lower respiratory infection;

Analysis of pathogen distribution change and drug resistance in low respiratory tract infection;

Analysis of 169 Escherichia coli strains isolated from sputum in children with low respiratory tract infection;

Objective To study the present situation of legionella pneumophila(Lp) infection of low respiratory tract infection in children less than 5 years old.

Objective To study drug resistance and distribution of infectious gram-negative bacillus in lower respiratory tract in ward and use the experience for reference of clinical application.