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In a Perspective, Jane Norman and Phillip Bennett argue that it is time to explore alternatives to progesterone for preventing preterm birth.

Analysis of data from the 2006-2008 National Survey of Family Growth indicates that use of emergency contraception in the United States has increased after changes in its prescription status in 2006. However, clinicians continue to play a pivotal role in ensuring that women have accurate information about emergency contraception.

In some cases, contraceptive methods are inherently controlled by one partner or the other. For example, women can get a prescription for and take hormonal birth control; men can't (at this time). However, this doesn't mean that men shouldn't participate in making the decision of what contraception to use and share in covering the cost. In fact, communicating about and sharing responsibility fo...

We combine a formal speciication technique with an object-oriented method using a meta-method for formal method integration based on heterogeneous notations 18, 19]. We discuss the integrated method, and then apply it to an example.