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| Authors (Ref.) | No. Of cases | Year | Primary/Secondary | Language |
|---|---|---|---|---|
| Seror et al. (15) | 1 | 1958 | Secondary | French |
| Khokhlov et al. (14) | 1 | 1962 | Primary | Russian |
| Ansimov et al. (13) | 1 | 1962 | Primary | Russian |
| Tkebuchava et al. (11) | 1 | 1966 | Primary | Other |
| Khokhlov et al. (12) | 1 | 1967 | Primary | Russian |
| Gillet et al. (10) | 3 | 1973 | Secondary | French |
| Mizaushev et al. (9) | 1 | 1979 | Primary | Russian |
| Ivanis et al. (8) | 1 | 1994 | Secondary | German |
| Aksu et al. (6) | 3 | 2013 | Primary | Other |
