published in Di 1 jun yi da xue xue bao = Academic journal of the first medical college of PLA Journal
has subject area Adolescent Adult Aged Aged, 80 and over Child Child, Preschool Cross Infection Female Gram-Negative Bacterial Infections Gram-Positive Bacterial Infections Humans Leukemia Lung Neoplasms Male Neoplasms Respiratory Tract Infections Retrospective Studies
