After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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The longest a person has survived after a heart transplant is 24 years.
Muscular system
Neuropeptides and Peripheral Peptides Involved in Control of Food Intake and Metabolism
Procedures and Diagnostic Tests Related to the Urinary System