Comment on

• Sertoli cells from non-obstructive azoospermia and obstructive azoospermia patients show distinct morphology, Raman spectrum and biochemical phenotype.

  Ma M, Yang S, Zhang Z, Li P, Gong Y, Liu L, Zhu Y, Tian R, Liu Y, Wang X, Liu F, He L, Liu Y, Yang H, Li Z, He Z. Ma M, et al. Hum Reprod. 2013 Jul;28(7):1863-73. doi: 10.1093/humrep/det068. Epub 2013 Mar 15. Hum Reprod. 2013. PMID: 23503944
• Raman microspectroscopy: a method with great promise but which also needs circumspection.

  Mallidis C, Sanchez V, Wistuba J. Mallidis C, et al. Hum Reprod. 2013 Sep;28(9):2595-6. doi: 10.1093/humrep/det263. Epub 2013 Jun 19. Hum Reprod. 2013. PMID: 23787214 No abstract available.