| Publication Type: | Journal Article |
| Year of Publication: | 1926 |
| Authors: | Simpson, J.J. |
| Journal: | Report of the Medical Officer of Health, Cardiff (1925): 20-23. |
| Pagination: | 426 |
| Publication Type: | Journal Article |
| Year of Publication: | 1926 |
| Authors: | Simpson, J.J. |
| Journal: | Report of the Medical Officer of Health, Cardiff (1925): 20-23. |
| Pagination: | 426 |