Chalermchai Boonyaleepun และ Jeffrey L. Schlac tus. (2001) Hereditary angioedema withnormal C 4 level. <i>Journal of Medicine and Health Sciences</i>, <i>7</i>(1), 35-37.Chalermchai Boonyaleepun และ Jeffrey L. Schlac tus. "Hereditary angioedema withnormal C 4 level". Journal of Medicine and Health Sciences 7 (2001):35-37.Chalermchai Boonyaleepun และ Jeffrey L. Schlac tus. Hereditary angioedema withnormal C 4 level. Faculty of Medicine,Srinakharinwirot University:ม.ป.ท. 2001.