The availability of advanced medical technology and sophisticated training of physicians are cited as driving motivators for growth in foreigners traveling to the US for medical care, whereas the low costs for hospital stays and major/complex procedures at Western-accredited medical facilities abroad are cited as major motivators for American travelers. Also, the decline in value of the US dollar between 2007 and 2013 used to offer additional incentives for foreign travel to the US, although cost differences between the US and many locations in Asia are larger than any currency fluctuations.