Author

Steen M. Willadsen

Observed names: S M Willadsen, S Willadsen, S. M. WILLADSEN, S. M. Willadsen, S. WILLADSEN, S. Willadsen, S.M Willadsen, S.M. WILLADSEN, S.M. Willadsen, Steen M Willadsen, Steen Willadsen

Observed institutions: Saint Barnabas Medical Center, University of Calgary, Cornell University, University of Cambridge, Northwest University, Weill Cornell Medical Center, Monash University

OpenAlex ID: A5048430105

Nuclear transplantation in sheep embryos

1986 · S. M. Willadsen · Nature · 820

Birth of infant after transfer of anucleate donor oocyte cytoplasm into recipient eggs

1997 · Jacques Cohen, Richard Scott, et al. · The Lancet · 411

A method for culture of micromanipulated sheep embryos and its use to produce monozygotic twins

1979 · S. M. WILLADSEN · Nature · 314

Interspecific chimaerism between sheep and goat

1984 · Carole B. Fehilly, S. M. Willadsen, et al. · Nature · 219

Mitochondrial DNA heteroplasmy after human ooplasmic transplantation

2000 · Carol A Brenner, Jason A Barritt, et al. · Fertility and Sterility · 182

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The viability of late morulae and blastocysts produced by nuclear transplantation in cattle

1991 · S.M. Willadsen, R.E. Janzen, et al. · Theriogenology · 167

Cytoplasmic transfer in assisted reproduction

2001 · Jason A. Barritt, Steen Willadsen, et al. · Human Reproduction Update · 162

Deep freezing of sheep embryos

1976 · S. M. Willadsen, C. Polge, et al. · Reproduction · 156

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Attempts to produce monozygotic quadruplets in cattle by blastomere separation

1981 · S. Willadsen, C. Polge · Veterinary Record · 153

Cryopreservation of Unfertilized Mouse Oocytes: The Effect of Replacing Sodium with Choline in the Freezing Medium

1998 · James J. Stachecki, Jacques Cohen, et al. · Cryobiology · 140

Effect of follicular steroids on the maturation and fertilization of mammalian oocytes

1980 · R. M. Moor, C. Polge, et al. · Development · 139

The developmental capacity of blastomeres from 4- and 8-cell sheep embryos

1981 · S. M. Willadsen · Development · 132

Factors Affecting the Survival of Sheep Embryos during Deep‐Freezing and Thawing

1977 · S. M. Willadsen · Novartis Foundation symposium · 126

Detrimental Effects of Sodium during Mouse Oocyte Cryopreservation

1998 · James J. Stachecki, Jacques Cohen, et al. · Biology of Reproduction · 114

The viability of early cleavage stages containing half the normal number of blastomeres in the sheep

1980 · S. M. Willadsen · Reproduction · 111

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The production of monozygotic twins of preselected parentage by micromanipulation of non-surgically collected cow embryos

1981 · S.M. Willadsen, H. Lehn-Jensen, et al. · Theriogenology · 109

Cloning of sheep and cow embryos

1989 · Steen M. Willadsen · Genome · 103

Rapid visualization of metaphase chromosomes in single human blastomeres after fusion with in-vitro matured bovine eggs

1999 · S. Willadsen, J. Levron, et al. · Human Reproduction · 99

The viability of deep-frozen cow embryos

1978 · S. Willadsen, C. Polge, et al. · Reproduction · 93

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Fertilization and development capability of bovine follicular oocytes matured in vitro and in vivo and transferred to the oviducts of rabbits and cows

1977 · A. O. Trounson, S. M. Willadsen, et al. · Reproduction · 86

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Isolation of bovine herpesvirus-1 (BHV-1) and bovine viral diarrhea virus (BVDV) in association with the in vitro production of bovine embryos

1993 · A. Bielanski, K.S. Loewen, et al. · Theriogenology · 79

Male and Female Genomes Associated in a Single Pronucleus in Human Zygotes

1995 · Jacob Levron, Santiago Munné, et al. · Biology of Reproduction · 76

The influence of in-vitro culture and cooling on the survival and development of cow embryos

1976 · A. O. Trounson, S. M. Willadsen, et al. · Reproduction · 76

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A simple procedure for the production of identical sheep twins

1984 · S. Willadsen, R. Godke · Veterinary Record · 73

The storage of cow eggs at room temperature and at low temperatures

1976 · A. O. Trounson, S. M. Willadsen, et al. · Reproduction · 66

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Works count: 73

Citation count: 5,306

H-index: 37

I10-index: 55