Nicotine absorption from electronic cigarette use: comparison between first and new generation devices Scientific Reports E cigarette & Vaping SCIREQ Scientific Respiratory Equipment E liquide Bio 60 ml avec Nicotine Classic Origine Naturacig Electronic Nicotine Delivery Systems (ENDS), including e cigarettes and vapes, are often perceived as a safer alternative to traditional tobacco. But is the evidence really supporting this belief? A recent umbrella review published