Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Ohishi Akira and Schulman Kevin A.,Improving Quality of Pharmacoeconomic Studies: Guidelines for Avoiding Bias,Iryo To Shakai,0916-9202,The Health Care Science Institute,1998,8,1,25-39,https://cir.nii.ac.jp/crid/1390001205448512000,https://doi.org/10.4091/iken1991.8.1_25