Concepedia

Gregory D. O'Brien

GD

Statistics

Publications

7

Citations

752

H-Index

7

Active since

1980

Affiliations

King's College Hospital(Current)

Georgetown University

Gregory D. O'Brien is an author at King's College Hospital specializing in ultrasonography, medicine, and obstetrics.

Publications per year

1980–1993

7

Publications

7

Ultrasound Scanning of Ovaries to Detect Ovulation in Women

John T. Queenan, Gregory D. O'Brien, Lyn M. Bains et al. · Fertility and Sterility · 1980 · 251 citations

, , +10

Assessment of gestational age in the second trimester by real-time ultrasound measurement of the femur length

Gregory D. O'Brien, John T. Queenan, Stuart Campbell · American Journal of Obstetrics and Gynecology · 1981 · 164 citations

, , +16

Growth of the ultrasound fetal femur length during normal pregnancy

Gregory D. O'Brien, John T. Queenan · American Journal of Obstetrics and Gynecology · 1981 · 133 citations

, , +14

Ultrasound measurement of fetal limb bones

John T. Queenan, Gregory D. O'Brien, S. Campbell · American Journal of Obstetrics and Gynecology · 1980 · 126 citations

, , +14

Ultrasound fetal femur length in relation to intrauterine growth retardation

Gregory D. O'Brien, John T. Queenan · American Journal of Obstetrics and Gynecology · 1982 · 31 citations

, , +14

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