1. Space Radiobiology
   Christine Elisabeth Hellweg et al, 2023, Radiobiology Textbook CrossRef
2. DNA Damage Formation and p53 Accumulation in Mammalian Cells Exposed to the Space Environment.
   Takeo Ohnishi et al, 1999, Biological Sciences in Space CrossRef
3. Expression of p53-Regulated Genes in Cultured Mammalian Cells After Exposure to A Space Environment
   Takeo Ohnishi et al, 2009, Biological Sciences in Space CrossRef