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Distribution of Nigeria's HIV/AIDS publications in the Web of Science by journal impact factors
| Journal impact factor* | No. of all articles | Articles with foreign address, n(%) |
| ≥ 5 | 17 | 17 (100.0) |
| ≥ 4 and < 5 | 2 | 0 (0.0) |
| ≥ 3 and < 4 | 14 | 11 (78.6) |
| ≥ 2 and < 3 | 54 | 36 (66.7) |
| ≥ 1 and < 2 | 55 | 17 (30.9) |
| < 1 | 66 | 13 (19.7) |
| NA | 46 | 15 (31.3) |
| Total | 254 | 109 (42.9) |
*The journal impact factor was based on the 2006 Journal Citation Reports Science Edition, NA = Not available
