Biphasic sleep refers to sleep habits that involve a person sleeping for two segments per day. Sleeping during nighttime hours and taking a midday nap, for example, is biphasic sleep. Biphasic sleep ...

A previously healthy 18-month-old girl presented to a local hospital with a 2-day history of dry cough, hoarse voice and difficulty breathing. There was no history of aspiration. Despite therapy with ...

Biphasic anaphylaxis involves a second anaphylactic reaction that happens after the first has been successfully treated. This may occur up to 72 hours after the initial reaction. Anaphylaxis is a ...