Vaping Linked to Early Cancer Signs, New Study Warns Firstpost America YouTube Electronic cigarettes (e cigarettes) are sometimes called e cigs, vapes, vape pens, and electronic nicotine delivery systems (ENDS). E cigarettes come in many shapes and sizes. Most e cigarettes contain nicotine. Get the facts about e cigarettes, Clinical Oncology Society of Australia concludes E cigarettes are likely to cause lung cancer and oral cancer Stanton Glantz blog Growing the research evidence on e cigarettes by Research at CRUK Medium More cancer causing chemicals found in electronic cigarettes The Verge