William P. Collins

ORCID: 0000-0003-4414-8034 · 5 papers in corpus · active 1976-1998

Study types

  • article 4
  • letter 1

Condition tags

  • dysmenorrhea 1
  • endometriosis 1
article 1998
·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 ultrasound…

article 1996
·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…

letter 1994
·doi:10.1016/s0140-6736(94)92013-3
article 1991
·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…

article 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…