Some diseases and medications can hurt your dog 's liver. Other causes of liver disease may include: 1  Some plants and herbs such as ragwort, certain mushrooms, and blue-green algae. 2  Molds that grow on corn. 3  Untreated heartworms. 4  Diabetes. 5  Issues with the pancreas. 6  Long-term use of painkillers. 7  Fatty foods.
1 Primary research involves more time while secondary research does not. 2  A lot of preparation is entailed in primary research. 3  Both primary research and secondary research follow the same steps, but they come from different sources.
Primary Source vs Secondary Sources in the Sciences. In the Sciences, primary sources are documents that provide full description of the original research. For example, a primary source would be a journal article where scientists describe their research on the human immune systems. A secondary source would be an article commenting on or analyzing the scientists' research on the human immune system.