1. External quality control for embryology laboratories
Jose Antonio Castilla, Rafael Ruiz de Assín, Maria Carmen Gonzalvo, Ana Clavero, Juan Pablo Ramírez, Francisco Vergara, Luis Martínez 
Reproductive BioMedicine Online 
Volume 20, Issue 1, Pages (January 2010)
DOI: /j.rbmo
Copyright © 2009 Reproductive Healthcare Ltd. Terms and Conditions

2. Figure 1
Success rates in evaluation of materials. Sensitivity could not be calculated in 2007 as only non-toxic materials were sent.
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3. Figure 2
Mean percentage decrease in sperm motility and acceptance or rejection of materials (2003–2007). Bars=SD.
Reproductive BioMedicine Online  , 68-74DOI: ( /j.rbmo )
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4. Figure 3
Percentage of embryos (day 2 and day 3) and zygotes with a high degree of agreement.
Reproductive BioMedicine Online  , 68-74DOI: ( /j.rbmo )
Copyright © 2009 Reproductive Healthcare Ltd. Terms and Conditions

5. Figure 4
Clinical decision: percentage of zygotes (2003–2006) and day-2 and day-3 embryos (2003–2007) with a high degree of agreement.
Reproductive BioMedicine Online  , 68-74DOI: ( /j.rbmo )
Copyright © 2009 Reproductive Healthcare Ltd. Terms and Conditions