Cumulus cells and their extracellular matrix affect the quality of the spermatozoa penetrating the cumulus mass
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S.-J. H. has nothing to disclose. P. C.-C. has nothing to disclose. K.-F. L. has nothing to disclose. J.Y.-M. T. has nothing to disclose. P.-C. H. has nothing to disclose. W.S.-B. Y. has nothing to disclose.
Supported by grants from the Research Grant Council, Hong Kong (HKU 7408/03M).
PII: S0015-0282(08)03283-4
doi:10.1016/j.fertnstert.2008.07.1760
© 2009 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.

