The 1h 30min incubation step of the Estradiol RIA is compatible with a daily follow-up of assays, if necessary. Its range is as high as 18 000 pmol/L, enabling an accurate assay without dilution, even for the high values observed in ovulation induction.
The 2023 U.S. Open will be held June 15-18, and The Los Angeles Country Club will become just the third U.S. Open venue in Southern California, joining Riviera Country Club in nearby Pacific Palisades (1948) and Torrey Pines Golf Course in San Diego (2008, 2021).
Forty-three courses return as U.S. Open local qualifying sites from last year and several have a long history as hosts. Illini Country Club, in Springfield, Ill., has conducted a U.S. Open qualifier since the late 1940s. Maketewah Country Club, in Cincinnati, Ohio, has been a local site in 39 of the last 40 years. Riverton (Wyo.) Country Club and Genoa Lakes Golf Club, in Genoa, Nev., have each hosted local qualifying since 1998.