A written agreement which explicitly states a fixed duration that the contract will be in effect. The signing parties are obligated to adhere to the terms and conditions within the contract until the expiration, or end date, of the contract. http://www.businessdictionary.com/definition/term-contract.html.
The most common symptoms of Lou Gehrig's Disease are: 1  twitching. 2  cramping, or stiffness of muscles. 3  muscle weakness affecting an arm or a leg.  slurred and nasal 1  speech. or difficulty chewing or swallowing.
Deficiency symptoms include: 1  Brittle and thin fingernails. 2  Hair loss (alopecia) 3  Conjunctivitis. 4  Dermatitis in the form of a scaly, red rash around the eyes, nose, mouth, and genital area. 5  Neurological symptoms in adults, such as depression, lethargy, hallucination, and numbness and tingling of the extremities.