Scientists at the national institutes of health are collaborating with the government of thailand to test the effectiveness of a new vaccine in preventing hiv infection among prostitutes. half the women receive the experimental vaccine and half receive an injection of salt water, and the women are then monitored for development of hiv infection. what kind of epidemiologic study is this?
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Health, 22.06.2019 18:00, ashbromail
If a person has a bad pain in their back, specifically lower back a bit above the hip, what should they do besides going to the doctor? what remedies could they use?
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Health, 23.06.2019 08:30, brooke012002
It is just as important to develop our as it is to develop our bodies.
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Scientists at the national institutes of health are collaborating with the government of thailand to...
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