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A speculum used to hold the vagina open in order to visualize the cervix.
These illustrations show Ellen Craft, a slave with and without a disguise. She dressed “as a disting
Rank-order correlations show that differential consistency remains high from childhood through late ...
If drug elimination mechanisms become saturated, a drug may exhibit zero-order elimination.
Determining the order and rate constant of an irreversible first-order reaction
Time spent on, paid work and housework, by living arrangements of Canadian