Moreover, these data entry errors would be hard to detect: Only 0.06% of the errors were blank or outside of the allowable range for the variables. Thus, researchers cannot rely upon histograms and frequency tables to detect data entry errors.
Answer Wiki. Isotretinoin does not cause infertility; what it does cause is devastating birth defects if a woman becomes pregnant while using it. For a female: you have to use totally reliable birth control-that would be the IUD or the implant-to be certain you do not conceive.
In women who have this, the ovaries don't produce the needed hormones that cause follicles to release mature eggs. These follicles that don't break open become cysts. The condition is often marked by infrequent menstrual periods [source: HHS]. In fact, polycystic ovary syndrome, or PCOS, is the leading cause of infertility in women [source: HHS].