@article{oai:repository.dl.itc.u-tokyo.ac.jp:00041702,
 author = {Shimizu, Tetsuro and Aita, Kaoruko},
 journal = {Bulletin of death and life studies},
 month = {},
 pages = {5--5},
 title = {Preface},
 volume = {7},
 year = {2011}
}