They are efficient for rare diseases or diseases with a long latency period between exposure and disease manifestation.
I believe the answer is bracket sentence that address your point. i googled it.
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Answer:
<em>It is not clear what the growing popularity of poetry will mean for Afghanistan. In many cases, poetry serves as a welcome outlet for frustrated men and women, who often feel cornered by war and tied down by tradition.</em>
Answer:
Parapsychology claims that are not held up in double-blind experiments means that those claims are fake. This contributes to Tyson's central idea that we need tools in order to prove and explain the world deeper than the basics.
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