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Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

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Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

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Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

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About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

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Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Range of Motion of the Hip Joint, Internal and External Rotation Range of Motion of the Hip Joint, Internal and External Rotation
Location of internal and external hemorrhoids. Location of internal and external hemorrhoids.
External auditory canal External auditory canal
C. Wright Mills (1916-1962) was a controversial figure in sociology because of his analysis of the ... C. Wright Mills (1916-1962) was a controversial figure in sociology because of his analysis of the ...
An example of a selection list used to identify symptoms. An example of a selection list used to identify symptoms.
Western blot analysis of viral antigens. The nitrocellulose strips from the kit contain blotted ... Western blot analysis of viral antigens. The nitrocellulose strips from the kit contain blotted ...
Video: Reflex arc construction

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