School-based schistosomiasis control programmes: a comparative study on the prevalence and intensity of urinary schistosomiasis among nigerian school-age children in and out of school
| Autor: | Useh, M.F., Ejezie, G.C. |
|---|---|
| Zdroj: | In Transactions of the Royal Society of Tropical Medicine and Hygiene 1999 93(4):387-391 |
| Databáze: | ScienceDirect |
| Externí odkaz: |
|