## Basic introduction
## The common causes AAb
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b. Kenyan Ministry of Health. Clinical guidelines for management and referral of common conditions at levels 4-6. Hospitals. 2009; 3:259-261.http://apps.who.int/medicinedocs/documents/s21000en/s21000en.pdf
c. Lukens TW, Emerman C, Effron D. The natural history and clinical findings in undifferentiated abdominal pain. Ann Emerg Med. 1993 Apr; 22(4):690-6.
d. Ministry of Health, Kenya. Kenya Essential Medicine List (2016). http://publications.universalhealth2030.org/uploads/KEML-2016Final-1.pdf
e. Nyaga, EM and Ndungu. JM. Acute Non-Traumatic Abdominal Pain in Childhood at Kenyatta National Hospital, Kenya . Annals of African Surgery, Vol 6 (2010)