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The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

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Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

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Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

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Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

The three dimensions of stream structure. The three dimensions of stream structure.
Invasive species in Canada include (a) zebra mussels, Dreissena polymorpha, (b) sea lamprey, Petromy Invasive species in Canada include (a) zebra mussels, Dreissena polymorpha, (b) sea lamprey, Petromy
Climate change is an important vector for human diseases Climate change is an important vector for human diseases
Cast of a Fossil Dunkleosteus, with a human to illustrate scale Cast of a Fossil Dunkleosteus, with a human to illustrate scale
Computer reconstructions of the diversity in neurons that exist across species Computer reconstructions of the diversity in neurons that exist across species
Video: Predator- prey competition and symbiosis

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