If you regularly access the PubMed database for assignments or research purposes please be aware that due to the government shutdown in the US the information on the PubMed website may not be as current you'd expect. Updates will be made available on the site - please see the latest one below:
Because of a lapse in government funding, the information on this
website may not be up to date, transactions submitted via the website
may not be processed, and the agency may not be able to respond to
inquiries until appropriations are enacted.
The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov.
Updates regarding government operating status and resumption of normal operations can be found at USA.gov.