Overgrowth of which microorganism is most likely responsible for pediatric cases of enterocolitis following antibiotic therapy?

What is the difference between an antitussive and an expectorant?

A) Antitussives aid expulsion of phlegm. B) Expectorants suppress unproductive coughs. C) Antitussives and expectorants are the same thing. D) Expectorants loosen and thin mucus and phlegm.

Which of the following are the richest sources of iron?

A) Fatty foods such as butter, margarine, lard, and oil B) Fruits such as oranges, limes, peaches, and melons C) Leafy greens such as spinach, kale, broccoli, and lettuce D) Animal meats, organ meats, fortified grains, and cereals