Quick Answer. According to The Free Dictionary, etiology, also spelled aetiology, is the study of exploration of the cause or factors contributing to something. In pathology, it specifically denotes the investigation into the cause or origins of a disease. Continue Reading.
Pellets deliver consistent, healthy levels of hormones for 3-4 months in. women and 4-5 months in men. They avoid the fluctuations, or ups. and downs, of hormone levels seen with every other method of delivery.
1 Pellet Vent pipe, referred to as L-Vent pipe, can be purchased in 3 inch and 4 inch diameter sizes. 2  The L-Vent pipe is the correct type of pipe for your pellet stove. 3  The inner chimney is made from Stainless Steel and will last as long as your pellet stove.