@article{oai:twinkle.repo.nii.ac.jp:00023219,
 author = {SAWAMURA, Jitsuki and MORISHITA, Shigeru and ISHIGOOKA, Jun},
 journal = {Theoretical biology & medical modelling},
 month = {Jul},
 title = {A group-theoretical notation for disease states: an example using the psychiatric rating scale},
 volume = {9},
 year = {2012}
}