In the afternoon of February 23rd, Pro. Paul M O’Byrne, Pro. Martin Kolb and Pro. Andrew Mclvor from Firestone Institute for Respiratory Health in Canada visited Respiratory Medicine Department of our hospital, and had a discussion with their fellows from Respiratory Medicine Department in PUTH and System Respiratory Medicine Department in Peking University, Health Science Center.

Translated by ZHANG Yi, Proof by ZHOU Li