J Depares, R E Ryder, S M Walker, M F Scanlon, C M Norman
Depares J, Ryder R E, Walker S M, Scanlon M F, Norman C M.
Ovarian ultrasonography highlights precision of symptoms of ovulation as markers of ovulation.
Br Med J (Clin Res Ed) 1986; 292 :1562
doi:10.1136/bmj.292.6535.1562