In the natural sciences, a primary source could be defined as a report of original findings or ideas. These sources often appear in the form of research articles with sections on methods and results..
crampon - a hinged pair of curved iron bars; used to raise heavy objects crampoon grapnel, grapple, grappling hook, grappling iron, grappler - a tool consisting of several hooks for grasping and holding; often thrown with a rope
Tempell says the results also suggest that writer's cramp is a form of focal dystonia, a brain disorder characterized by involuntary muscle spasms. Writer's cramp: literally in your head. Symptoms of PKAN vary greatly but may include dystonia, muscular rigidity, and sudden involuntary muscle spasms.