title: Invited commentary.
authors.affiliation: Department of Thoracic Surgery, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chiba 260-8670, Japan. iyoda@haibyo1.m.chiba-u.ac.jp
authors.forename: Akira
authors.initials: A
authors.lastname: Iyoda
mesh_terms: D055396:Bone Morphogenetic Protein 2; D019485:Bone Morphogenetic Proteins / Q000378:metabolism*; D006801:Humans; D008175:Lung Neoplasms / Q000235:genetics* / Q000378:metabolism*; D018358:Neuroendocrine Tumors / Q000235:genetics / Q000378:metabolism; D016212:Transforming Growth Factor beta / Q000378:metabolism*
chemical_list: C525718:BMP2 protein, human; D055396:Bone Morphogenetic Protein 2; D019485:Bone Morphogenetic Proteins; D016212:Transforming Growth Factor beta