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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
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No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.