J. Halliday

Publications246
h-index46
Citations7,252
Highly Influential Citations336
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Beckwith-Wiedemann syndrome and IVF: a case-control study.
To the Editor: A recent series of observations has suggested a linkbetween in vitro fertilization (IVF) and imprinting disorders, such as Beckwith-Wiedemann syndrome (BWS [MIM 130650]) and… Expand
  • 342
  • 22
Minimum birth prevalence of mitochondrial respiratory chain disorders in children.
Mitochondrial respiratory chain disorders comprise a group of perhaps several hundred different genetic diseases. Each individual disorder is rare, but collectively they account for substantial use… Expand
  • 399
  • 17
Prevalence and risk factors for obstetric haemorrhage in 6730 singleton births after assisted reproductive technology in Victoria Australia.
BACKGROUND Obstetric haemorrhages have been reported to be increased after assisted reproduction technologies (ART) but the mechanisms involved are unclear. METHODS This retrospective cohort study… Expand
  • 168
  • 16
Pregnancies conceived using assisted reproductive technologies (ART) have low levels of pregnancy-associated plasma protein-A (PAPP-A) leading to a high rate of false-positive results in first…
BACKGROUND First trimester screening (FTS) for Down syndrome combines measurement of nuchal translucency, free beta-human chorionic gonadotrophin and pregnancy-associated plasma protein-A (PAPP-A).… Expand
  • 86
  • 14
What is the impact of genetic counselling in women at increased risk of developing hereditary breast cancer? A meta-analytic review.
Meta-analytic methods were used to determine the impact of genetic counselling on women with a family history of breast cancer. Published studies with prospective designs and randomized controlled… Expand
  • 196
  • 10
Outcomes of singleton births after blastocyst versus nonblastocyst transfer in assisted reproductive technology.
OBJECTIVE To compare obstetric and perinatal outcomes of singleton births after assisted reproductive technology (ART) with blastocyst transfer (days 5 to 6) versus nonblastocyst transfer (days 2 to… Expand
  • 79
  • 10
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Gastroschisis and associated defects: An international study
Our objective was to evaluate the frequency and type of malformations associated with gastroschisis in a large pool of international data, to identify malformation patterns, and to evaluate the role… Expand
  • 129
  • 9
Outcomes of IVF conceptions: are they different?
  • J. Halliday
  • Medicine
  • Best practice & research. Clinical obstetrics…
  • 1 February 2007
Perinatal outcomes, such as preterm delivery, low birth weight and some obstetric complications, are increased significantly after in-vitro fertilization (IVF) compared with spontaneously conceived… Expand
  • 63
  • 9
Preterm birth, ovarian endometriomata, and assisted reproduction technologies.
OBJECTIVE To report preterm birth and small for gestational age (SGA) rates from assisted reproduction technologies (ART) patients with ovarian endometriomata compared with control groups. DESIGN… Expand
  • 122
  • 8
International trends of Down syndrome 1993-2004: Births in relation to maternal age and terminations of pregnancies.
BACKGROUND The aim of this study was to examine trends of Down syndrome (DS) in relation to maternal age and termination of pregnancies (ToP) in 20 registries of the International Clearinghouse for… Expand
  • 121
  • 8
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