But the disease often causes telltale changes in the retina that can be picked up by an ophthalmologist.
The detector picks up the telltale "signatures" of these decay patterns and records them, and the data is then analyzed by scientists.
The telltale splatter pattern of ejecta rays — bedrock scattered around the impact zone — suggested an 8, 000 MPH collision with a 4.3-foot iron space pebble.
In the United States these days, about two record highs are being set for every record low, telltale evidence that amid all the random variation of weather, the trend is toward a warmer climate.
There are a number of telltale signs that an application is leaking memory.
Other telltale signs of petdom include bestowing a name on the animal and allowing it into the house.
It's a telltale example of the difficulties of working with imperfect Allies in the war on terror, something Obama is understandably loath to mention.
the telltale cigarette ash on the carpet
Another telltale sign of a vampire was a lack of reflection in mirrors.
The Fermi Space Telescope found hints in 2009 of the telltale pattern associated with positrons in terrestrial gamma rays stemming from lightning storms.
The walls were painted beige, to better frame telltale facial expressions and physical gestures on videotape.
But who knew that slathering pureed soybeans on your face is also a solution for those telltale signs of aging?
One of the telltale signs: inconsistencies, such as when someone is telling you no and shaking his head yes, or saying he regrets something while using an unremorseful tone.
The telltale signs include explanatory notes or phone calls, or the fact that a posh car was torched in a poor neighbourhood.
The teacher did not notice that I was cheating until that rotten telltale told her.
I could see from the telltale look in her eyes that she loved him.
The "beats" are caused by small physical differences in mass that lead to those telltale interference effects.
While researchers have known for some time that dogs can sniff out the telltale signs of other forms of cancer, this is the first study that proves dogs can reliably smell this particular kind.
If suspects in a crime are identified — by items reported stolen or by telltale blood stains on their clothes — the perpetrators are dragged out into the open and stoned to death by a crowd.
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