The pH Gradient Reversal (IMAGE) Bentham Science Publishers Caption Persistent and magnified pH gradient reversal is a hallmark of cancer. Credit Dr. Mohit Sharma, Bentham Science Publishers Usage Restrictions Image Copyrights belong to Dr. Mohit Sharma 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.