Example: ul > li will match all <li> elements that are inside a <ul> element. Descendant selectors. The ' ' combinator selects nodes that are children (not necessary direct children) of the former specified element. Example: div span will match any <span> element that is inside a <div> element.
Generic Firazyr. Because a patent is in place until  July 2014, companies are currently not allowed to make a generic version of Firazyr (icatibant). However, after this patent expires, a generic product may become available.
The first patent for Zetia currently expires in March 2014. However, in lawsuits, courts have upheld a later-expiring patent (set to expire in April 2017) for Zetia. As a result, April 2017 is the earliest possible date that a generic version of the drug could become available.