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Effects of kisspeptin on LH secretion. A and B, Representative patterns of LH secretion from two men. C, Average serum LH (upper panel) and distribution of pulses (lower panel) across all 13 subjects. Each box in the lower panel indicates that a subject had a pulse nadir at that time point. Error bars show sem in this and all figures. Arrows, Time of kisspeptin administration; arrowheads, peaks of pulses.
