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In this photo issued by Wake Forest Institute for Regenerative Medicine and taken in April 2014, Yuanyuan Zhang, M.D., Ph.D, assistant professor at the Institute, demonstrates the process to engineer a vaginal organ in a laboratory in Winston Salem, N.C. Scientists report in two separate studies they have made vaginas and part of the nose, providing more evidence that growing organs in the laboratory is possible. Researchers have previously made windpipes, bladders, tear ducts and other organs in the lab. The two latest papers were published online Friday April 11, 2014 in the journal, Lancet. (AP Photo/WFBMC Photography)

Studies: Lab-grown nostrils, vaginas working well

By MARIA CHENG and MALCOLM RITTER - Associated Press

Scientists make new urethras for 5 boys

By MARIA CHENG - Associated Press

Scientists make new urethras for 5 boys

By MARIA CHENG - Associated Press