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His father, a businessman, was of Norwegian origin, his mother, a journalist, had German ancestry

say the "exponential increase in the use of e-cigarettes due to their widespread promotion as safer alternatives to traditional smoking" is a "dangerous threat" and a "public health risk." But they also describe e-cigarettes as a promising harm reduction tool

"The immediate adverse health effects of smoking provide further support for smoking prevention program to target young women, especially teenagers," wrote the researchers in their published study

Stepanov, I., Yershova, K., Carmella, S., Upadhyaya, P

Radisch, B., Luck, W