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Author Question: The nova event is created by the helium flash. Indicate whether the statement is true or ... (Read 31 times) |
The horizontal fraction bar was introduced by the Arabs.
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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.
The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.
Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.