Depiction of the vectorcardiogram in three planes frontal, sagittal, and horizontal.  

A congenital condition in which the vagina is divided longitudinally into two parts. This division may be partial or complete....

A vaccine used to provide immunity against smallpox, one of the deadliest infections in the history of humanity. The vaccine...

A vaccine prepared from bacteria treated with their specific immune serum.  

Severe, bilateral uveitis that starts as inflammation of the uveal tract of one eye resulting from a puncture wound. The...

The lack of involution of the uterus following childbirth, manifested by a large uterus (greater than 100 g) and a...

Urticaria occurring in certain people after exposure to sunlight.  

A healing by second intention with adhesion of granulating surfaces.  

A rarely occurring ulcer of the colon caused by pressure from impacted feces. Perforation through the walls of the colon...

A corneal ulcer found in some patients with vernal conjunctivitis. The ulcer is sometimes associated with corneal plaques that may...