The reason why scientists and labs have multiple tests, is there can be errors in a test. Perhaps cause by error in testing-- not to suggest that is the only possible reason. Clearly two tests with distinctly different readings should make people ponder-- and helps why it's important to have two tests.
Of course, some may speculate that if there are two tests-- one positive and one negative, perhaps it's the negative that is incorrect.
Last edited by drc; 02-24-2012 at 07:23 AM.
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