Comparison of cryobiopsy and forceps biopsy for the diagnosis of mediastinal lesions: A randomised clinical trial T.-L. Cheng; Z.-S. Huang; J. Zhang; J. Wang; J. Zhao; K. Kontogianni; W.-L. Fu; N. Wu; W.M. Kuebler; F.J. Herth; Y. Fan;

Genetic variation of six specific SNPs of chronic obstructive pulmonary disease among Chinese population J. Jing; D. Xu; Z. Li; J. Wang; J. Dai; F.S. Li;

Mixed squamous cell and glandular papilloma of the bronchus Q. Cao; B. Li; H. Lian; J. Li;