An "emerging" contaminant may also be identified from an unknown source, a new exposure to humans, or a novel detection approach or technology [ 1, 2].
A rare form in my liver that has spread from an unknown source.
When a big beat from an unknown source kicked in, we returned to 2009.
This latest leak, from an unknown source, spans Mossack Fonseca's entire global database.
I have never responded to a text from an unknown source.
The other parent seemed to be a cross between 'Duchess of Oldenburg' and 'Golden Delicious' from an unknown source.
Later, two Israeli Army jeeps arrived to escort out a news photographer whose vehicle had come under fire from an unknown source.
5.00pm: A Dutch newspaper and the broadcaster RTL have gained access to 3,000 cables through Norway's Aftenposten, which was leaked the cables from an unknown source.
As a second puzzle, she reports that over the last several years, on 7 July, she has received six pearls in the mail from an unknown source.
During the fighting, shrapnel from an unknown source hit 20 loaded trucks headed for Afghanistan's central mountains, destroying more than 260 tons of food.
When light from an unknown source is analyzed in a spectroscope, the different patterns of bright lines in the spectrum reveal which elements emitted the light.
