1. US geologic survey estimated earthquake deaths in 1988 to be approximately three times the world's annual average death toll of around 10,000;New York Times,1989
2. US geologic survey estimated earthquake deaths in 1988 to be approximately three times the world's annual average death toll of around 10,000;New York Times,1989
3. Cholera kills 1,1000 in Peru and marches on, reaching the Brazilian border;New York Times International,1991
4. Cholera kills 1,1000 in Peru and marches on, reaching the Brazilian border;New York Times International,1991
5. Communicable disease and epidemiological surveillance after sudden natural disasters;de Ville de Goyet,1988