Breathing in two hundred parts per million of carbon monoxide will cause the first signs of poisoning.

VOA: special.2011.01.25

Malaria,diarrhea,and typhoid- water-related diseases that are not fatal in First World countries- cause half of the child deaths in Yemen.

VOA: standard.2010.04.01

"Now that we have discovered the endogenous capsaicin molecules, for the first time, we can block their synthesis and therefore we can treat pain at its cause."

VOA: standard.2010.05.04