Depression may be challenging to assess in a patient with dementia. In patients with AD, the presence of depression may range from 6% to 30%, depending on the diagnostic criteria employed (Cummings et al., 1995). The prevalence and course of depression in dementia are controversial, due to several confounding factors.
Astronauts use space shuttles(trasport people and equipment), Space probes (robotic exploration, Spacecrafts (trasport crew, equipment, and other technologies).
This article is about the Mars lander. For the Star Trek spacecraft, see Phoenix (Star Trek). For the Space: 1999 spacecraft, see List of Space: 1999 vehicles Â§ Phoenix (formerly known as Uranus Probe). For other uses, see Phoenix (disambiguation).