About a month earlier, letters containing the substance were addressed to President Barack Obama, a U.S. senator and a Mississippi judge.

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An ice cream tub containing a substance believed to be human placenta has been found by a dog walker, police say.

BBC: 'Placenta' found by London dog walker

The Italy skipper, 36, took a medicine containing banned substance cortisone after a wasp sting on 28 August and failed a dope test two days later.

BBC: Angry Cannavaro cleared of doping

His family sued General Motors and several other companies, saying Buttitta had been exposed to asbestos as a child because his father was employed at a GM plant where he handled parts containing the substance.

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What the Maryland researchers have done is create a substance containing many Minkowski universes.

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Honey is a complex substance, containing up to 800 compounds and its complexity means it has been difficult to pinpoint exactly how it kills bacteria.

CNN: Study: Honey can kill superbugs

Two Turkish chemists prescribed penicillin antibiotics without inquiring about any history of allergy, and one Egyptian pharmacy sold a cough suppressant containing oxeladine, a substance banned in many countries over fears that it might cause cancer.

BBC: Holidaymakers 'get wrong medicines'

The researchers fired a beam of calcium ions, each containing 20 protons, into a target of californium, a highly radioactive synthetic substance with 98 protons.

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