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Your issue could be a bad ground wire at the socket, if that's where you tested from

The concentration was determined using the TMV-specific extinction coefficient of 3.0 cm 1 mg 1 ml (at 260 nm)

According to professor David Levy and colleagues at Georgetown University Medical Center, replacement of cigarette use by e-cigarette use over a 10-year period could yield as much as 6.6 million fewer premature deaths with 86.7 million fewer life years lost

National Toxicology Program Cancer Hazard Assessment Report on Night Shift Work and Light at Night

Cardiovascular toxicity of nicotine: Implications for electronic cigarette use