title: Global update: USA.
abstract: Despite the political nature of stem cell research, this area of science continues to flourish in the USA. In 2011, the NIH funded approximately US$1.2 billion in stem cell research - a steady increase from past years - with US$123 million devoted to human embryonic stem cells. According to the ISI Web of Science, more than 4000 US-authored stem cell publications were produced in 2011, accounting for approximately 38% of the world total. Approximately a quarter of these publications were collaborations with authors from other countries.
authors.affiliation: James A Baker III Institute for Public Policy, Rice University, 6100 Main Street, MS-40, Houston, TX 77005, USA. krwm@rice.edu
authors.forename: Kirstin Rw
authors.initials: KR
authors.lastname: Matthews
authors.forename: Maude L
authors.initials: ML
authors.lastname: Rowland
mesh_terms: D006801:Humans; D044968:Regenerative Medicine / Q000191:economics / Q000706:statistics & numerical data*; D057905:Stem Cell Research / Q000191:economics; D033581:Stem Cell Transplantation / Q000191:economics / Q000706:statistics & numerical data; D014481:United States