1. Sperm selection by swim-up in terms of deoxyribonucleic acid fragmentation as measured by the sperm chromatin dispersion test is altered in heavy smokers 
Thamara Viloria, Ph.D., Nicolás Garrido, Ph.D., José Luis Fernández, M.D., José Remohí, M.D., Antonio Pellicer, M.D., Marcos Meseguer, Ph.D. 
Fertility and Sterility 
Volume 88, Issue 2, Pages (August 2007)
DOI: /j.fertnstert
Copyright © 2007 American Society for Reproductive Medicine Terms and Conditions

2. FIGURE 1
Results of DNA fragmentation in sperm samples before and after swim-up according to male smoking status. The percentage of DNA fragmented sperm is shown in a box plot fashion.
Viloria. Sperm DNA fragmentation in smokers. Fertil Steril 2007.
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2007 American Society for Reproductive Medicine Terms and Conditions