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Handbook Of Endemic Treponematoses : Yaws, Endemic Syphilis, And Pinta / Peter L.Perine, Donald R.Hopkins , Paul L.A. Niemel, Ronald K.St.John , Georges Causse and G.M. Antal.
- World Health Organization,
- 1984.
- Geneva :
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Nutritional Surveillance / John B. Mason.
- World Health Organization,
- 1984.
- Geneva :