Serum relaxin level in unexplained chronic pelvic pain in pregnant and non pregnant female (the journal of the Egyptian society of gynecology and obstetric –volume22-number10) . Doppler us assessement of uteine and ovarian blood flow in normalfertile women and in anovulatory and unexplained infertility (ain shames medical journal – volume48-number2). Plasma endothelin concentrations in normal and preeclamptic pregnancies and its relation to fetal status ( the journal of the Egyptian society of gynecology and obstetric –volume23) . Doppler velocity waveforms and PG synthesis in umbilical vessels in growth retarted fetus (ain shames medical journal – volume48-number2). The value of aminoinfusion in patient with thick meconium and oligohydraminos (the journal of the Egyptian society of gynecology and obstetric –volume23) . Urodynamic finding in genuine stress urinary incontinence and uterovaginal prolapse before and after surgical repaire and HRT(the journal of the Egyptian society of gynecology and obstetric –volume23) . Intraumblical PGF2∞ and oxytocin injection for delivery of retained placenta(ain shames medical journal –). Correlation of US, color Doppler and cytology to the histopathologic diagnosis of ovarian masses (the journal of the Egyptian society of gynecology and obstetric –volume23) .