O. Carreras

The usefulness of ultrasound guidance in frozen-thawed embryo transfer: a prospective randomized clinical trial.

A. Veiga, J. Balasch, F. Martínez, 2002, Human reproduction.

Ultrasound-guided embryo transfer: immediate withdrawal of the catheter versus a 30 second wait.

F. Martínez, P. Barri, L. Hereter, 2001, Human reproduction.

Embryo transfer under ultrasound guidance improves pregnancy rates after in-vitro fertilization.

A. Veiga, F. Martínez, P. Barri, 2000, Human reproduction.

Transvaginal sonographic appearance of functional ovarian cysts.

F. Tresserra, M. Pascual, L. Hereter, 1997, Human reproduction.

The influence of the depth of embryo replacement into the uterine cavity on implantation rates after IVF: a controlled, ultrasound-guided study.

A. Veiga, J. Balasch, F. Martínez, 2003, Human reproduction.

Is AMH useful to reduce low ovarian response to GnRH antagonist protocol in oocyte donors?

F. Martínez, P. Barri, I. Rodríguez, 2013, Gynecological endocrinology : the official journal of the International Society of Gynecological Endocrinology.

Effect of using an echogenic catheter for ultrasound-guided embryo transfer in an IVF programme: a prospective, randomized, controlled study.

A. Veiga, J. Balasch, P. Barri, 2006, Human reproduction.

Ureteral lesion secondary to vaginal ultrasound follicular puncture for oocyte recovery in in-vitro fertilization.

A. Veiga, G. Calderón, P. Barri, 1997, Human reproduction.

Clinical value of transvaginal colour Doppler ultrasound.

P. Barri, O. Carreras, 1996, Human reproduction.

Ovarian function during hormonal replacement therapy in perimenopausal women

F. Martínez, M. Manubens, R. Tur, 1993, Advances in contraception : the official journal of the Society for the Advancement of Contraception.

Sonographic assessment of ovarian reserve. Its correlation with outcome of in vitro fertilization cycles

P. Barri, R. Tur, O. Carreras, 2007, Gynecological endocrinology : the official journal of the International Society of Gynecological Endocrinology.