Staessen C, Janssenswillen C, De Clerck E, Van Steirteghem A (1998) Controlled comparison of commercial media for human in-vitro fertilization: Menezo B2 medium versus Medi-Cult universal and BM1 medium. Hum Reprod 13, 2548-2541.

Tournaye H, Clasen K, Aytoz A, Nagy Z, Van Steirteghem A, Devroey P (1998) Fine needle aspiration versus open biopsy for testicular sperm recovery: a controlled study in azoospermic patients with normal spermatogenesis. Hum Reprod 13, 901-901.

Bonduelle M, Joris H, Hofmans K, Liebaers I, Van Steirteghem A (1998) Mental development of 201 ICSI children at 2 years of age. Lancet 351, 1553.

Sermon K, Goossens V, Seneca S, Lissens W, De Vos A, Vandervorst M, Van Steirteghem A, Liebaers I (1998) Preimplantation diagnosis for Huntington's disease (HD): clinical application and analysis of the HD expansion in affected embryos. Prenat Diagn 18, 1427-1421.

Van de Velde H, De Vos A, Joris H, Nagy ZP, Van Steirteghem AC (1998) Effect of timing of oocyte denudation and micro-injection on survival, fertilization and embryo quality after intracytoplasmic sperm injection. Hum Reprod 13, 3160-3161.

De Vos A, Sermon K, Van de Velde H, Joris H, Vandervorst M, Lissens W, Mortier G, De Sutter P, Lofgren A, Van Broeckhoven C, Liebaers I, Van Steirteghem A (1998) Pregnancy after preimplantation genetic diagnosis for Charcot-Marie-Tooth disease type 1A. Mol Hum Reprod 4, 978-971.

Silber SJ, Verheyen G, Van Steirteghem AC (1998) Spermatid conception. Hum Reprod 13, 2976-2971.

Sermon K, De Vos A, Van de Velde H, Seneca S, Lissens W, Joris H, Vandervorst M, Van Steirteghem A, Liebaers I (1998) Fluorescent PCR and automated fragment analysis for the clinical application of preimplantation genetic diagnosis of myotonic dystrophy (Steinert's disease). Mol Hum Reprod 4, 791-791.

Staessen C, Van Steirteghem A (1998) The genetic constitution of multinuclear blastomeres and their derivative daughter blastomeres. Hum Reprod 13, 1625-1621.

Nagy ZP, Janssenswillen C, Janssens R, De Vos A, Staessen C, Van de Velde H, Van Steirteghem AC (1998) Timing of oocyte activation, pronucleus formation and cleavage in humans after intracytoplasmic sperm injection (ICSI) with testicular spermatozoa and after ICSI or in-vitro fertilization on sibling oocytes with ejaculated spermatozoa. Hum Reprod 13, 1606-1601.

Van der Elst J, Amerijckx Y, Van Steirteghem A (1998) Ultra-rapid freezing of mouse oocytes lowers the cell number in the inner cell mass of 5 day old in-vitro cultured blastocysts. Hum Reprod 13, 1595-1591.

Verheyen G, Crabbe E, Joris H, Van Steirteghem A (1998) Simple and reliable identification of the human round spermatid by inverted phase-contrast microscopy. Hum Reprod 13, 1570-1571.

Bourgain C, Nagy ZP, De Zutter H, Van Ranst H, Nogueira D, Van Steirteghem AC (1998) Ultrastructure of gametes after intracytoplasmic sperm injection. Hum Reprod 13 Suppl 1, 107-101.

Joris H, Nagy Z, Van de Velde H, De Vos A, Van Steirteghem A (1998) Intracytoplasmic sperm injection: laboratory set-up and injection procedure. Hum Reprod 13 Suppl 1, 76-71.

Van Steirteghem A (1998) Outcome of assisted reproductive technology. N Engl J Med 338, 194-191.

Devroey P, Pados G (1998) Preparation of endometrium for egg donation. Hum Reprod Update 4, 856-851.

Vandervorst M, Liebaers I, Sermon K, Staessen C, De Vos A, Van de Velde H, Van Assche E, Joris H, Van Steirteghem A, Devroey P (1998) Successful preimplantation genetic diagnosis is related to the number of available cumulus-oocyte complexes. Hum Reprod 13, 3169-3161.

Christiaens F, Janssenswillen C, Van Steirteghem AC, Devroey P, Verborgh C, Camu F (1998) Comparison of assisted reproductive technology performance after oocyte retrieval under general anaesthesia (propofol) versus paracervical local anaesthetic block: a case-controlled study. Hum Reprod 13, 2456-2451.

Aytoz A, De Catte L, Camus M, Bonduelle M, Van Assche E, Liebaers I, Van Steirteghem A, Devroey P (1998) Obstetric outcome after prenatal diagnosis in pregnancies obtained after intracytoplasmic sperm injection. Hum Reprod 13, 2958-2951.

Devroey P (1998) Testicular sperm extraction and intracytoplasmic sperm injection. Hum Reprod 13, 2045-2041.

Devroey P (1998) Clinical application of new micromanipulative technologies to treat the male. Hum Reprod 13 Suppl 3, 112-112.

Albano C, Grimbizis G, Smitz J, Riethmuller-Winzen H, Reissmann T, Van Steirteghem A, Devroey P (1998) The luteal phase of nonsupplemented cycles after ovarian superovulation with human menopausal gonadotropin and the gonadotropin-releasing hormone antagonist Cetrorelix. Fertil Steril 70, 357-351.

Bonduelle M, Wilikens A, Buysse A, Van Assche E, Devroey P, Van Steirteghem AC, Liebaers I (1998) A follow-up study of children born after intracytoplasmic sperm injection (ICSI) with epididymal and testicular spermatozoa and after replacement of cryopreserved embryos obtained after ICSI. Hum Reprod 13 Suppl 1, 196-191.

Liebaers I, Sermon K, Staessen C, Joris H, Lissens W, Van Assche E, Nagy P, Bonduelle M, Vandervorst M, Devroey P, Van Steirteghem A (1998) Clinical experience with preimplantation genetic diagnosis and intracytoplasmic sperm injection. Hum Reprod 13 Suppl 1, 186-181.

Devroey P, Vandervorst M, Nagy P, Van Steirteghem A (1998) Do we treat the male or his gamete? Hum Reprod 13 Suppl 1, 178-171.

Bonduelle M, Aytoz A, Van Assche E, Devroey P, Liebaers I, Van Steirteghem A (1998) Incidence of chromosomal aberrations in children born after assisted reproduction through intracytoplasmic sperm injection. Hum Reprod 13, 781-781.

Crabbe E, Verheyen G, Silber S, Tournaye H, Van de Velde H, Goossens A, Van Steirteghem A (1998) Enzymatic digestion of testicular tissue may rescue the intracytoplasmic sperm injection cycle in some patients with non-obstructive azoospermia. Hum Reprod 13, 2791-2791.

Aytoz A, Camus M, Tournaye H, Bonduelle M, Van Steirteghem A, Devroey P (1998) Outcome of pregnancies after intracytoplasmic sperm injection and the effect of sperm origin and quality on this outcome. Fertil Steril 70, 500-501.

Nagy ZP, Verheyen G, Tournaye H, Van Steirteghem AC (1998) Special applications of intracytoplasmic sperm injection: the influence of sperm count, motility, morphology, source and sperm antibody on the outcome of ICSI. Hum Reprod 13 Suppl 1, 143-141.

Van Steirteghem A, Nagy P, Joris H, Janssenswillen C, Staessen C, Verheyen G, Camus M, Tournaye H, Devroey P (1998) Results of intracytoplasmic sperm injection with ejaculated, fresh and frozen-thawed epididymal and testicular spermatozoa. Hum Reprod 13 Suppl 1, 134-131.

Grimbizis G, Camus M, Clasen K, Tournaye H, De Munck L, Devroey P (1998) Hysteroscopic septum resection in patients with recurrent abortions or infertility. Hum Reprod 13, 1188-1181.

Nagy ZP, Joris H, Verheyen G, Tournaye H, Devroey P, Van Steirteghem AC (1998) Correlation between motility of testicular spermatozoa, testicular histology and the outcome of intracytoplasmic sperm injection. Hum Reprod 13, 890-891.

Grimbizis G, Vandervorst M, Camus M, Tournaye H, Van Steirteghem A, Devroey P (1998) Intracytoplasmic sperm injection, results in women older than 39, according to age and the number of embryos replaced in selective or non-selective transfers. Hum Reprod 13, 884-881.

Devroey P, Tournaye H, Van Steirteghem A, Hendrix P, Out HJ (1998) The use of a 100 IU starting dose of recombinant follicle stimulating hormone (Puregon) in in-vitro fertilization. Hum Reprod 13, 565-561.

Ubaldi F, Wisanto A, Camus M, Tournaye H, Clasen K, Devroey P (1998) The role of transvaginal ultrasonography in the detection of pelvic pathologies in the infertility workup. Hum Reprod 13, 330-331.

Tournaye H (1998) Urgently wanted for ICSI: clinical andrologists. Hum Reprod 13, 253-251.

Aytoz A, Tournaye H, Camus M, Ubaldi F, Verheyen G, Van Steirteghem A, Devroey P (1998) Is there any need for diagnostic laparoscopy in couples undergoing intracytoplasmic sperm injection for severe male-factor infertility. J Assist Reprod Genet 15, 79-71.