D. Armstrong

Development of techniques for the production of viable embryos from 6 to 7 week old lambs

C. Earl, B. Irvine, D. Armstrong, 1994 .

The effect of human chorionic gonadotropin and estradiol-17beta on the maintenance of the human corpus luteum of early pregnancy.

P. Garner, D. Armstrong, David T. Armstrong, 1977, American journal of obstetrics and gynecology.

Advances in production of embryos in vitro from juvenile and prepubertal oocytes from the calf and lamb.

D. Armstrong, C. Earl, D. Armstrong, 1997, Reproduction, fertility, and development.

In vitro fertilization: diurnal and seasonal variation in luteinizing hormone surge onset and pregnancy rates.

R. Casper, A. Yuzpe, S. Daniel, 1988, Fertility and sterility.

Effects of gonadotropins and granulosa cell secretions on the maturation and fertilization of rat oocytes in vitro

B. Vanderhyden, D. Armstrong, D. Armstrong, 1990, Molecular reproduction and development.

Hormonal Actions during Oocyte Maturation Influence Fertilization and Early Embryonic Development

B. Vanderhyden, X. Zhang, F. Khamsi, 1991, Annals of the New York Academy of Sciences.

Studies on zona hardening in rat oocytes that are matured in vitro in a serum‐free medium

X. Zhang, D. Armstrong, D T Armstrong, 1991, Molecular reproduction and development.

Comparative analysis of calf and cow oocytes during in vitro maturation

F. Acocella, E. Milanesi, A. Lauria, 1998, Molecular reproduction and development.