5De Salvo. £. Razzetta f Tassone U, Arezzo A, Mattioli FP. The role of drainage and antibiotic prophylaxis in thyroid surgery. Italian. Mine rva chirurgica. 53 ( 11 ) : 895 - 8,1998. nov.
6Karayacin K, Besim H, Ercan F, Hamamci O, Korkmoz A, Thyroidectomy with and without drains. East African Medical Journal ,74(7) .431-2. 1997. Jan.
7Debry C Renou O. Fingerhut A. Drainage after thyroid syrgery :a prospective randomized study :Journal of Saryngology & Otology.113(1) :49-51 ; 1999 Jan.