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.
Polycystic ovary syndrome (PCOS) is a common cause of infertility among women. PCOS causes about 30 out of every 100 cases of female infertility. PCOS was first recorded in 1935, but its symptoms have been observed as far back as 460-377 B.C. The symptoms of PCOS include excessive hair growth and lack of menses.