Reply from Authors re: Christian Leiber, Ulrich Wetterauer. The Cigarette and the Sperm: A Fatal Liaison? Eur Urol 2016;70:646-7: The Cigarette and the Sperm: Causality Dilemma no more?

Eric D Clegg, Sherry G Selevan, Charles C. Brown, Michael J. Zinaman, Semen quality and human fertility: a prospective study with healthy couples. Journal of Andrology. ,vol. 21, pp. 145- 153 ,(2000) , 10.1002/J.1939-4640.2000.TB03284.X

Sebastiano La Maestra, Silvio De Flora, Rosanna T. Micale, Effect of cigarette smoke on DNA damage, oxidative stress, and morphological alterations in mouse testis and spermatozoa International Journal of Hygiene and Environmental Health. ,vol. 218, pp. 117- 122 ,(2015) , 10.1016/J.IJHEH.2014.08.006

Maria Teresa Zenzes, Ryszard Bielecki, T.Edward Reed, Detection of benzo(a)pyrene diol epoxide-DNA adducts in sperm of men exposed to cigarette smoke. Fertility and Sterility. ,vol. 72, pp. 330- 335 ,(1999) , 10.1016/S0015-0282(99)00230-7

Germaine M. Buck Louis, Rajeshwari Sundaram, Enrique F. Schisterman, Anne Sweeney, Courtney D. Lynch, Sungduk Kim, José M. Maisog, Robert Gore-Langton, Michael L. Eisenberg, Zhen Chen, Semen quality and time to pregnancy: the Longitudinal Investigation of Fertility and the Environment Study Fertility and Sterility. ,vol. 101, pp. 453- 462 ,(2014) , 10.1016/J.FERTNSTERT.2013.10.022

MF Hamad, N Shelko, S Kartarius, M Montenarh, ME Hammadeh, None, Impact of cigarette smoking on histone (H2B) to protamine ratio in human spermatozoa and its relation to sperm parameters Journal of Andrology. ,vol. 2, pp. 666- 677 ,(2014) , 10.1111/J.2047-2927.2014.00245.X

Singh Rajender, Kelsey Avery, Ashok Agarwal, Epigenetics, spermatogenesis and male infertility Mutation Research-reviews in Mutation Research. ,vol. 727, pp. 62- 71 ,(2011) , 10.1016/J.MRREV.2011.04.002

Remy Slama, Florence Eustache, B Ducot, Tina Kold Jensen, Niels Jørgensen, Antero Horte, S Irvine, J Suominen, AG Andersen, J Auger, Matti Vierula, J Toppari, Anders Nyboe Andersen, Niels Keiding, Niels Erik Skakkebæk, Alfred Spira, P Jouannet, Time to pregnancy and semen parameters: a cross-sectional study among fertile couples from four European cities Human Reproduction. ,vol. 17, pp. 503- 515 ,(2002) , 10.1093/HUMREP/17.2.503

Rima Dada, Manoj Kumar, Rachel Jesudasan, Jose Luis Fernández, Jaime Gosálvez, Ashok Agarwal, Epigenetics and its role in male infertility Journal of Assisted Reproduction and Genetics. ,vol. 29, pp. 213- 223 ,(2012) , 10.1007/S10815-012-9715-0

Avi Harlev, Ashok Agarwal, Sezgin Ozgur Gunes, Amit Shetty, Stefan Simon du Plessis, None, Smoking and Male Infertility: An Evidence-Based Review The World Journal of Men's Health. ,vol. 33, pp. 143- 160 ,(2015) , 10.5534/WJMH.2015.33.3.143

Sezgin Gunes, Mehmet Alper Arslan, Gulgez Neslihan Taskurt Hekim, Ramazan Asci, The role of epigenetics in idiopathic male infertility Journal of Assisted Reproduction and Genetics. ,vol. 33, pp. 553- 569 ,(2016) , 10.1007/S10815-016-0682-8