1[1]Briggs MH.Cigarette smoking and infertility in men.Med J Aust,1973,1:616.
2[2]Haidas S,Williams AE,Tocher JL et al.Scoring spermmorphology from fertile and infertile cigarette smokers using the scanning electron microscope and image analysis.Fertil Steril,1985,43:595.
3[3]Rantala ML,Koskimies AI.Semen quality of infertile couples-comparison between smokers and non-smokers.Andrologia,1986,19(1):42.