The diaphragm is a shallow rubber cap with a rim made of a fine, flexible spring (Figure 4.1). It fits snugly and comfortably across the upper vagina, covering the entire cervix, thus preventing sperm ...
Despite the fact that the diaphragm was invented in 1842, it's still a relevant birth control option for some people today. Although modern options like the pill and IUDs are more effective, ...
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