Devices, compositions, and methods for achieving non-surgical lung volume reduction (e.g., bronchoscopic lung volume reduction (BLVR)) are described. BLVR can be carried out by collapsing a region of the lung, adhering one portion of the collapsed region to another, and promoting fibrosis in or around...http://www.google.com/patents/US7654998?utm_source=gb-gplus-sharePatent US7654998 - Tissue volume reduction