Sheng-Zhi Wang

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Orientation selectivity (OS) in the visual cortex has been found to be invariant to increases in stimulus contrast, a finding that cannot be accounted for by the original, purely excitatory Hubel and(More)
OBJECTIVE To observe the expression of urokinase-type plasminogen activator (uPA) in human tongue squamous carcinoma cells (Tca8113) under hypoxia, in order to explore the relation between hypoxia(More)