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Top 10 countries/regions for publications of PHN.
| Rank | Countries/Regions | Publications | Centrality |
|---|---|---|---|
| 1 | USA | 1323 | 0.04 |
| 2 | PEOPLES R CHINA | 461 | 0.04 |
| 3 | ENGLAND | 358 | 0 |
| 4 | GERMANY | 335 | 0 |
| 5 | JAPAN | 201 | 0 |
| 6 | CANADA | 198 | 0.10 |
| 7 | ITALY | 190 | 0.13 |
| 8 | FRANCE | 164 | 0.09 |
| 9 | SOUTH KOREA | 123 | 0 |
| 10 | NETHERLANDS | 106 | 0.02 |
PHN = postherpetic neuralgia.
