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| ulcer | | A lesion on the surface of the skin or a ... |
| ulcerative colitis | | Inflammation of the colon that is predominantly confined to the ... |
| ultrasonic therapy | | The use of focused, high-frequency sound waves to produce local ... |
| ultrasonics | | A subfield of acoustics dealing in the radio frequency range ... |
| ultrasonography | | The visualization of deep structures of the body by recording ... |
| ultraviolet rays | | That portion of the electromagnetic spectrum immediately below the visible ... |
| umbilical hernia | | A hernia due to an imperfect closure or weakness of ... |
| uniparental disomy | | The presence in a cell of two paired chromosomes from ... |
| unna thost syndrome | | An autosomal dominant disorder characterized by a widely distributed, well-demarcated ... |
| unstable angina | | Precordial pain at rest, which may precede a myocardial infarction.
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[ ... |
| urachal cyst | | Cyst occurring in a persistent portion of the urachus, presenting ... |
| ureter | | One of a pair of thick-walled tubes that transports urine ... |
| urethra | | A tube that transports urine from the bladder to the ... |
| urinary antibody-coated bacteria test | | Fluorescent antibody technique for visualizing antibody-bacteria complexes in urine. The ... |
| urinary retention | | Inability to urinate. The etiology of this disorder includes obstructive, ... |
| urolithiasis | | Calculi in any part of the urinary tract. According to ... |
| urology | | A surgical specialty concerned with the study, diagnosis, and treatment ... |
| ursidae | | The family of carnivorous or omnivorous bears, having massive bodies, ... |
| urticaria | | A vascular reaction of the skin characterized by erythema and ... |
| urticaria pigmentosa | | The most common form of cutaneous mastocytosis
that occurs primarily in ... |
| usher syndromes | | Autosomal recessive hereditary disorders characterized by congenital
sensorineural hearing loss ... |
| uterine cervical dysplasia | | Abnormal development of immature squamous epithelial cells of the uterine ... |
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