Angina pectoris, commonly known as angina, is the sensation of chest pain, pressure, or squeezing, often due to ischemia of the heart muscle from obstruction or spasm of the coronary arteries.
Pure Culture. A pure culture is a population of cells or multicellular organisms growing in the absence of other species or types.
Culture is the characteristics of a particular group of people, defined by everything from language, religion, cuisine, social habits, music and arts Culture is the characteristics of a particular group of people, defined by everything from language, religion, cuisine, social habits, music and arts