Sodium nitrate is a type of salt used to preserve foods, particularly cured meat. It's added to cured meat to extend its shelf life by preventing rancidity and the growth of bacteria. The U.S. Environmental Protection Agency has set a legal limit for the concentration of nitrate allowed in food.
The 12-year process of becoming a dermatologist requires a significant commitment of the student's physical, mental, emotional and financial resources. It's only natural to wonder how large a reward waits at the end of this long road.
Education and training/entrance requirements. To become a dermatologist, you must first become a qualified medical practitioner and then specialise in dermatology. In Western Australia, postgraduate degrees in medicine are offered by the University of Notre Dame and the University of Western Australia. These degrees usually take four years to complete.