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2. Risk for reduced sperm quality among metal workers, with special reference to welders;Mortensen, J.T.;Scand J Work Environ Health,1988
3. Subfertility in relation to welding. A case-referent study among male welders;Bonde, J.P.;Dan Med Bull,1990
4. Fertility among Danish male welders;Bonde, J.P.; Hansen, K.S.; Levine, R.L.;Scand J Work Environ Health,1990
5. Semen quality and sex hormones among mild steel and stainless steel welders: a cross sectional study;Bonde, J.P.;Br J Ind Med,1990