W P Collins

No ORCID on file · 8 papers in corpus
nonrandomized-trial 1998
Ultrasound in Obstetrics & Gynecology ·doi:10.1046/j.1469-0705.1998.12010050.x

BACKGROUND: Nitric oxide is a potent vasodilator and is involved in several physiological events during the female reproductive cycle. OBJECTIVE: The aim of this study was to determine the acute effects of a nitric oxide donor on ultrasoun…

observational 1996
Human Reproduction ·doi:10.1093/humrep/11.2.369

The aim of the study reported here was to establish complementary data for changes in uterine size, echogenicity and vascularity during the menstrual cycle relative to a positive self-test for urinary luteinizing hormone (LH) and day 1 of n…

other 1993
BMJ (Clinical research ed.) ·doi:10.1136/bmj.306.6884.1025

OBJECTIVE: To assess the value of transvaginal ultrasonography with colour blood flow imaging in detecting early ovarian cancer in women with a family history of the disease. DESIGN: Study of self referred symptomless women with a close re…

other 1991
Ultrasound in Obstetrics & Gynecology ·doi:10.1046/j.1469-0705.1991.01060420.x

We are using transvaginal ultrasonography with color Doppler imaging to study changes in intrafollicular blood flow over the periovulatory period. We report here the findings from one volunteer (subject 9), who took two tablets of paracetam…

other 1989
BMJ (Clinical research ed.) ·doi:10.1136/bmj.299.6712.1363

OBJECTIVE: To assess the value of ultrasonography in a screening procedure for early ovarian cancer. DESIGN: Prospective study of at least 5000 self referred women without symptoms of ovarian cancer. Each woman was scheduled to undergo thr…

rct 1981
The Lancet ·doi:10.1016/s0140-6736(81)90710-8

60 premenopausal women were assessed before and after hysterectomy for menorrhagia or fibroids or both. Their mood, sexual functioning, and plasma oestrogens and gonadotrophins were regularly assessed for a period of up to 3 years. Patients…

nonrandomized-trial 1980
British medical journal ·doi:10.1136/bmj.280.6217.825

The absorption, metabolism, and clearance of progesterone from the peripheral circulation were investigated in five postmenopausal women after oral administration of 100 mg daily for five consecutive days. Maximal plasma concentrations of p…

observational 1976
British journal of obstetrics and gynaecology ·doi:10.1111/j.1471-0528.1976.tb00839.x

The concentrations of prostaglandin E2 and F2alpha were measured by radioimmunoassay in samples of endometrial tissue from 155 women. The results showed that the concentration of prostaglandins E2 (ng/100 mg of wet tissue; mean +/- SD) in t…