Ryoji Yokota was a teenager kidnapped by the Umbrella Corporation and sent to Sheena Island for research purposes. Intended for the removal of β Hetero Nonserotonin from his brain, he was considered worthless as a subject due to a vein tumour being discovered in his cerebellum.
- ↑ 1.0 1.1 Resident Evil Survivor (2000), file: "Medical Charts of the Patients
- ↑ Resident Evil Survivor (2000), file: "How to extract Beta Hetero Nonserotonin"
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