Human fingers and toes do not grow outward; instead, they form from within a larger foundational bud, as intervening cells recede to reveal the digits beneath. This is among many processes captured for the first time as scientists unveil a spatial cell atlas of the entire developing human limb, resolved in space and time.
FTC says pharmacy benefit managers are stonewalling requests for information
A much-anticipated inquiry by U.S. antitrust regulators into pharmaceutical industry middlemen has been stymied because the companies have failed to provide many of the documents
February 27, 2024