S. Hayakawa, Y. Matsuzawa, T. Irie, H. Rikitake, N. Okada, and Y. Suzuki, “Efficacy of recombinant human soluble thrombomodulin for the treatment of acute exacerbation of idiopathic pulmonary fibrosis: a single arm, non-randomized prospective clinical trial”, Multidiscip Respir Med, vol. 11, no. 1, Nov. 2016, doi: 10.4081/mrm.2016.343.