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About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

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Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

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Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

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Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Defensive mutualism involves species that receive food or shelter in return for providing protection Defensive mutualism involves species that receive food or shelter in return for providing protection
reaction system of photosynthesis reaction system of photosynthesis
Two types of DNA transfer can take place during conjugation Two types of DNA transfer can take place during conjugation
Transfer RNAs (tRNA) carry amino acids to the ribosome to be synthesized into proteins. Transfer RNAs (tRNA) carry amino acids to the ribosome to be synthesized into proteins.
Immunologic and inflammatory mechanisms of the Arthus reaction. Immunologic and inflammatory mechanisms of the Arthus reaction.
Simple amplification of 1kb DNA fragments by polymerase chain reaction. Simple amplification of 1kb DNA fragments by polymerase chain reaction.
Video: Requirements for nervous signals

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