Of those, roughly 12 percent need persistent respiratory support or have other serious complications requiring prolonged stays in a special care nursery. (sciencedaily.com)
In making these adjustments, Bond and his team were testing a concept known as saturation diving, which turned out to be the key to prolonged stays underwater and under pressure. (discovermagazine.com)
My dad suffers from mobility problem and as a result has very prolonged stay in bed (3 months now). (drlam.com)