
doi: 10.2307/2947646
On April 1 1983 the U.S. Food and Drug Administration (FDA) approved a disposable vaginal sponge as a nonprescription contraceptive. The sponge--a new method of delivering spermicide--offers women who wish to use nonprescription contraceptives two improvements over products already on the market. It may be worn for up to 24 hours and it may be used for more than one act of intercourse without requiring additional applications of spermicide. (excerpt)
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 0 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
