'Mineral fibre' diaporamas de présentation

Classification of Textile Fibers

All textiles are made up of fibers. Fibers include natural fibers (cotton, bast and leaf fibers, wool, silk) & synthetic fibers.

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Lung cancer: a preventable disease

Lung cancer: a preventable disease. Epidemiology addresses issues related to ? Heredity, Life-style, and Environment. Censina R. Apap, MD FCCP. Lung cancer: how did it start?. First described in 1420 in Schneeberg-Austria after the opening of cobalt- and nickel mines.

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296 views • 14 slides