Epiphora is often caused by tear film and ocular surface problems rather than by anatomical obstruction of lacrimal drainage ... an under-recognized cause of upper lacrimal system epiphora.

Varicose veins (VVs) classically result from venous hypertension owing to incompetence of the major communications between the superficial and deep veins of the lower extremity. In a significant ...

WASHINGTON — SpaceX’s seventh Starship/Super Heavy test flight ended prematurely Jan. 16 when the Starship upper stage was apparently lost while ascending into space. The vehicle lifted off ...

On one side, a participant can move a robotic arm by simply thinking about movement, and on the other side, sensors on that robotic limb can trigger pulses of electrical activity called ...