Comparing the median values of FSH, LH, TG, TC, HDL, and LDL for the fresh and frozen samples each year, there was a decreasing trend with increasing storage time; there was an increasing trend with time for values of the E 2 , GLU, and T levels in the frozen samples.
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Assessing the impact of long-term storage on the quality and integrity of biological specimens in a reproductive biobank.
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