Can we use incubators with atmospheric oxygen tension in the first phase of in vitro fertilization?
The use of a culture system with atmospheric oxygen tension from recovery of oocytes until insemination followed by culture in low oxygen gives results similar to exclusive use of low oxygen concentration.
The presence of micrometastases and isolated tumor cells was found to be a prognostic factor for recurrence and disease-free survival. This may have implications for future treatment of stage I/II colon cancer.