Ms. Narumi OGONUKI made a press release.
“Spermatocyte injection into meiotic oocytes rescues diplotene, but not pachytene, arrest in azoospermic mutant mice”
RIKEN Site (Japanese) 
Human Reproduction Open Site 
BRC Site
“Spermatocyte injection into meiotic oocytes rescues diplotene, but not pachytene, arrest in azoospermic mutant mice”
RIKEN Site (Japanese) Human Reproduction Open Site BRC Site
“Development of assisted reproductive technology for wild-derived mice”
BRC Site
“Derivation of embryonic stem cells from cloned blastocysts using improved somatic cell nuclear transfer in common marmosets”
RIKEN Site (Japanese) Stem Cell Reports Site BRC Site