Objective: The purpose of this study was to prospectively test the null hypothesis that there is no difference in the clinical effectiveness of azithromycin and erythromycin for the treatment of chlamydia cervicitis in pregnancy. Methods: All antepartum obstetrical patients underwent routine screen
The fox guarding the clinical trial: internal vs. external validity in randomized studies
β Scribed by Pamela J. Goodwin; Kathleen I. Pritchard; David Spiegel
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 28 KB
- Volume
- 8
- Category
- Article
- ISSN
- 1057-9249
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
nificant behavioral differences. Therefore, it is assumed in this study that the effect of the integration was minimal as far as can be observed while the experiment lasted. The present findings are especially significant when the characteristics of the female patients are taken into consideration.
We performed a prospective randomized clinical study to compare intravitreal silicone oil vs. gas (20% C3F8 or 30% C4F8) in the management of complicated retinal detachments and vitreous hemorrhage. Despite similar anatomic and visual results, the gas-treated group had significantly more instances o
## Abstract **Objectives** To compare, in a doubleβblind, randomized, prospective study, the clinical improvement of hyperpigmentation in 30 patients with melasma using hydroquinone or skin whitening complex topically on one side of the face vs. a placebo cream on the other. The study was performed