@phdthesis{oai:sapmed.repo.nii.ac.jp:00017663,
 author = {清水, 晴夫},
 month = {Mar},
 school = {札幌医科大学},
 title = {Malignant Potential of Gastrointestinal Cancers Assessed by Structural Equation Modeling.},
 year = {2017}
}