Decreased Consciousness - References

References:

1. Current Medical Diagnosis and Treatment 2012
2. Decreased alertness - (http://www.nlm.nih.gov/medlineplus/ency/article/003202.htm)
3. Depression of consciousness - (http://www.dartmouth.edu/~dons/part_2/chapter_17.html)
4. Plum and Posner's Diagnosis of Stupor and Coma - (http://books.google.co.in/books/about/Plum_and_Posner_s_Diagnosis_ of_Stupor_an.html?id=Otivdh2ZoVwC&redir_esc=y)