Reader companion · English v4.8 · Updated September 15, 2026
Reference archive
September 2026 revision — 58 sources, with source-access notes
English v4.8 — all 58 numbered sources
Choose the edition named in your book. The English v4.8 source review was completed September 15, 2026.
More reader resources
Read the book’s online reading guide and patient appendix for scope and evidence, abbreviations, seven treatment questions, chapter navigation, glossary, and visit worksheets.
Raised numbers in the English v4.9 production edition map to the same numbered entries in the English v4.8 archive.