While some studies reported adverse effects with reduced clinical pregnancy rates 33,34 , increased abortion rates 33,53 , fewer oocytes per OPU 42,54,55,56 , lower fertilisation rates 54,57 , reduced endometrial thickness 37 , higher gonadotropin dosages for ovarian stimulation 58 , and increased cytoplasmic and meiotic anomalies 55,59 , others did not confirm these findings
Research published in Tobacco Control in 2023 found that, between 2017 and 2022, disposable e-cigarettes nearly tripled in nicotine strength yet dropped in price by nearly 70 percent
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The World Tobacco Atlas measured cost per pack in 2012, and put Australia as the second most expensive in the world
Two different heated tobacco products vs