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.
Terbium is a silver gray rare earth metal that is both malleable and ductile. Like other rare earth metals, it forms 3+ ions. Unlike most, it also forms 4+ ions relatively easily. Terbium does not tarnish rapidly in air and it is soft enough to be cut with a knife.