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Klinefelter syndrome is a chromosome disorder in males. People with this condition are born with at least one extra X chromosome.
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Klinefelter syndrome is the presence of an extra X chromosome in a male.
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Klinefelter syndrome is a chromosome disorder in males. People with this condition are born with at least one extra X chromosome.
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Klinefelter syndrome is a chromosome disorder in males that results in hypogonadism (small penis and small firm testicles). People with this condition are born with at least one extra X chromosome.
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Klinefelter syndrome is a chromosome disorder in males. People with this condition are born with at least one extra X chromosome.
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A condition affecting males that is caused by the presence of extra X chromosomes. Klinefelter's syndrome, also known as primary micro-orchidism, affects males only. A normal male has one pair of sex chromosomes made up of one X and one Y. In Klin...
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Also known as cryptorchidism, undescended testes is a congenital condition characterized by testicles that do not follow the normal developmental pattern of moving into the scrotum before birth.
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Undescended testicle occurs when one or both testicles fail to move into the scrotum before birth.
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Also known as cryptorchidism, undescended testes is a congenital condition characterized by testicles that do not extend to the scrotum.
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Human immunodeficiency virus (HIV) is a retrovirus that causes acquired immune deficiency syndrome (AIDS) by infecting helper T cells of the immune system. The most common serotype, HIV-1, is distributed worldwide, while HIV-2 is primarily confine...
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Acquired immunodeficiency syndrome, or AIDS, is the final, life-threatening stage of infection with any of the human immunodeficiency viruses (HIV-1, its many subtypes, or HIV-2), which are transmitted from person to person sexually (including via...
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HIV (human immunodeficiency virus) was identified in 1983 by the French scientist Luc Montagier and his staff at the Pasteur Institute in Paris. Ever since that discovery, scientists have been searching for ways to treat those infected with HIV, a...
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Chromosomal abnormalities describe changes in the normal number of chromosomes or structural problems within the chromosomes themselves. These abnormalities occur when an egg or sperm with an incorrect number of chromosomes, or a structurally faul...
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Chromosomal abnormalities describe changes in the normal number of chromosomes or structural problems within the chromosomes themselves. These abnormalities occur when an egg or sperm with an incorrect number of chromosomes, or a structurally faul...
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DES (diethylstilbestrol) is a hormone that was prescribed for pregnant women in the 1950s and early 1960s. Many years later, doctors discovered that the daughters of the women who received DES were at high risk for a variety of problems, including...
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