In fact, the only thing needed to make them is iron and nitrogen ... Like many simple questions about nature, there’s no easy answer that doesn’t require a fair amount of hand-waving.

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Human Rights Watch defends the rights of people in close to 100 countries worldwide, spotlighting abuses and bringing perpetrators to justice ...

Photos from around the region, including readers' pictures, plus reports of disruption to schools and transport services as the Birmingham and the West Midlands deals with the snow ...

2014;129:e477–e479 When a blood clot forms in the deep veins of the body ... must carefully monitor what they eat to maintain a consistent vitamin K intake. No food interactions. Drug interactions ...

Collagen (a protein found in muscles, bones, and other tissues) forms scar tissue. After an injury, your body lays down collagen that will become normal healthy tissue. Collagen that develops under ...