Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Hara Tsukasa and Koinuma Masayoshi and Nakamura Hitoshi and Kiryu Tomijiro and Masumoto Akihide,Predictability on the lead time percentage of the subject incorporation by the clinical trial,The Journal of Japan Society for Health Care Management,18812503,Japan Society for Health Care Management,2011-12-01,12,3,169-172,https://cir.nii.ac.jp/crid/1390285300163374976,https://doi.org/10.11191/jhm.12.169