The following article by Tadashi Imanishi (Tokai University, School of Medicine, Professor) et al., from the Open Recruiting Research team A04, was published in HLA Volume 95, Issue 4.
Title: Implications of HLA diversity among regions for bone marrow donor searches in Japan
Shiho Hashimoto,Fumiaki Nakajima,Tadashi Imanishi,Yosuke Kawai,Kazue Kato,Takafumi Kimura,Shigeki Miyata,Minoko Takanashi,Miwako Nishio,Katsushi Tokunaga,Masahiro Satake
Downloading the article -> こちら