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Results 1371 - 1380 of 1390 for Tumors
  • Amenorrhea - Absence of Menstruation
    Health - 26 Feb 2019
    Amenorrhea is the absence of three or more consecutive menstrual periods or delayed menstruation in girls over the age of 15 who have never had a menstrual period. Under normal circumstances, a woman...
  • Alveolar Echinococcosis
    Health - 26 Feb 2019
    Echinococcosis is a term used to describe a potentially lethal zoonotic disease caused by tapeworms of the genus Echinococcus. Disease states can be further sub-classified into either cystic...
  • What is Immunodeficiency?
    Health - 26 Feb 2019
    Immunodeficiency diseases have traditionally been defined as defects in the development and function of T and B cells, the primary effector cells of specific cellular and humoral immunity...
  • Epidemiology of Lung Cancer
    Health - 25 Feb 2019
    The incidence of lung cancer in the 20th century has largely mirrored the rise and fall in cigarette smoking. The risk of lung cancer in smokers is ten times that of non-smokers. However, the...
  • Organic Food Health Benefits
    Health - 16 Jan 2019
    This article examines the health benefits of organic food, which is thought to contain higher concentrations of specific vitamins and nutrients.
  • Types of Hearing Loss
    Health - 15 Jan 2019
    Hearing loss or hearing impairment can be categorized as either conductive hearing loss, sensorineural hearing loss or a mixed type that exhibits underlying symptoms of both conductive and...
  • What is a Tracheotomy?
    Health - 5 Dec 2018
    A tracheotomy is a surgical procedure that creates an opening into the trachea for the installation of a breathing tube.
  • Types of Nail Disease
    Health - 4 Dec 2018
    Nails are unique structures formed of keratin, just like hair or skin. Nail diseases vary in etiology and morphology. The most common types are presented here.
  • Aspartame Safety and Evidence
    Health - 7 Nov 2018
    All artificial sweeteners are firmly regulated and can only be used after they have been assessed rigorously for their safety.
  • Types of Ion Channels in the Body
    Health - 26 Oct 2018
    Ion channels are membrane proteins, which play a principal role in regulating cellular excitability. They are found in virtually all cells, and are of crucial physiological importance. Based on the...

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