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In 1994, dozens of fragments of Comet Shoemaker-Levy 9 collided with:
Relaxation Training
Techniques and practices designed to reduce stress and anxiety, promoting a state of calmness.
Nicotine Replacement Therapy
A method used to help people stop smoking by providing nicotine in forms other than cigarettes.
Systematic Review
A comprehensive summary of research findings on a particular topic, following a strict methodology to critically analyze and synthesize data from multiple studies.
Placebo
An inactive substance or condition that has the appearance of an active treatment and that may cause improvement or change because of people’s belief in the placebo’s efficacy.
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