- NLW MS 20615C.
- Ffeil
- 1937.
Essay: 'Laboratory tests for the diagnosis of pregnancy' by O. E. Roberts (typescript). Boards. Donated by O. E. Roberts, Liverpool, September 1970.
Essay: 'Laboratory tests for the diagnosis of pregnancy' by O. E. Roberts (typescript). Boards. Donated by O. E. Roberts, Liverpool, September 1970.