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I put it on and I liked it

Hypotheses 52 , 465477 (1999)

Ma, L., Wang, Y., Wang, X

I did not even know what the topic meant before creating the video, but I ended up doing a ton of research and I found out how much I liked the topic and agreed with its meaning

If smoking has been banned in domestic and international commercial flights in the majority of the world since the year 2000, then why do we still find ashtrays even on newly-manufactured aircraft

I wondered if these studies got around the ethical concerns by recruiting youth and young adults who were already using e-cigarettes, for the same rationale that observational data on risky behavior is okay to collect but randomized experiments on people not engaging in risky behavior are unethical