In vitro fertilization/embryo transfer in the United States: 1985 and 1986 results from the National IVF/ET Registry**Prepared in cooperation with the American Fertility Society’s Society of Assisted Alternative Reproductive Technology.,††Supported by a grant from Serono Laboratories, Inc., Randolph, Massachusetts.

1988 ◽  
Vol 49 (2) ◽  
pp. 212-215 ◽  
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