Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) STEYERBERG EW,Prognostic modeling with logistic regression analysis : in search of a sensible strategy in small data sets,Med. Decis. Making,,,2001,21,,45-56,https://cir.nii.ac.jp/crid/1570572700128948224,