Ovarian ultrasonography highlights precision of symptoms of ovulation as markers of ovulation.Br Med J (Clin Res Ed) 1986; 292 doi: https://doi.org/10.1136/bmj.292.6535.1562 (Published 14 June 1986) Cite this as: Br Med J (Clin Res Ed) 1986;292:1562
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