Wolgemuth and Blithe (IMAGE) Male Contraception Information Project Caption Professor Debra Wolgemuth, Columbia University (L), discusses inhibition of retinoic acid signaling, a new male contraceptive approach, with Dr. Diana Blithe (R) of the National Institute of Child Health and Human Development. Credit © Male Contraception Information Project Usage Restrictions May be reproduced with proper credit to Male Contraception Information Project. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.