Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Asakura Toshinari and Seino Hiroaki,Study to Determine if 33 Gauge Tapered Injection Needle Affects Hypoglycemic Properties and Crystalline Structure of Neutral Protamine Hagedorn (NPH) Insulin Particles of Insulin Preparations Passed through it,Iryo Yakugaku (Japanese Journal of Pharmaceutical Health Care and Sciences),1346-342X,Japanese Society of Pharmaceutical Health Care and Sciences,2005,31,11,943-950,https://cir.nii.ac.jp/crid/1390282679754202496,https://doi.org/10.5649/jjphcs.31.943