Detection of interleukin-6 in human follicular fluid**Presented at the 46th Annual Meeting of The American Fertility Society, Washington, D.C., October 15 to 18, 1990.††Supported by a grant from the California Institute for Cancer Research, Los Angeles, California, and by grants CA 01588 from the National Institutes of Health and CA 09120 from the National Institutes of Health Tumor Immunology Institutional Training, Bethesda, Maryland.