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The cells were then washed with PBS containing 1 mM MgCl 2 and stained with X -gal solution [1 mg/ml X -gal, 0.12 mM K 3 Fe(CN) 6 , 1 mM MgCl 2 in PBS, pH 6.0] overnight at 37 C
Among various risk factors, smoking has been widely discussed in medical circles and by public health experts for its role in TB infection and progression
But the British singer recently revealed she gave up the habit and explained the reason why
She was admitted on a full scholarship
The tear duct secretes small amounts of clear fluid and likely serves two functions: scent communication and lubrication
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