1 the proven link between heart diseases and lung cancer to active smoking, 2  the presence of several known carcinogens in environmental tobacco smoke, and. 3  the general acceptance that the risks of certain diseases are directly related to the amount of tobacco smoke inhaled.
Onychomycosis (also known as dermatophytic onychomycosis or tinea unguium) is a fungal infection of the nail. It is the most common disease of the nails and constitutes about half of all nail abnormalities.
Vulval intraepithelial neoplasia (VIN) is a condition where there are pre-cancerous cells in the skin of the vulva. Before discussing VIN it is important to remember that skin is divided into three layers: epidermis, dermis and the fatty layers beneath. The epidermis or top layer is less than one millimetre thick and is constantly being shed.