Maisin, JP., & Gersdorff, M. (1983). [The Use of Tympanostomy Tubes in Chronic Serous Otitis-media - Results of a 3 To 5 Years Study in 90 Childrens]. Louvain médical, 102(6), 309-316. https://hdl.handle.net/2078.5/63935 (Original work published 1983)