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There are three common delivery methods used for parasite control in cattle: injections (syringe and needle), oral drenches (by mouth), and pour-ons (oil based liquids poured on back)
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1914
The Association of Practical Nurse Schools was founded in 1941
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Mainly people undergoing surgery.
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The debates over vaccinations are often cast as arguments over the integrity of science. But they can just as easily be understood as conversations about power, writes Eula Biss, a senior lecturer at Northwestern University, in her book, On Immunity: An Inoculation. As it stands, all 50 states require specific vaccines for school-aged children, although each grants exemptions for students unable to be vaccinated for medical reasons. The power struggle—pitting parents against parents—arises in the 19 states that allow families to opt out of vaccination requirements by claiming a "philosophical exemption," whether based on personal, moral, or religious beliefs.
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