PA1-1 - What does PA1-1 stand for? The Free Dictionary
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The variance among sampling dates at each of the four locations (PA1-1
and PA1-2, PA2-1 and PA2-2, PA6-1 and PA6-2, PA7-1 and PA7-2; 24 individuals per subpopulation) ranged from 23 to 30% (P [is less than] 0.001) of the total.