NeoStem, Inc. November 4, 2013 New York, NY. NeoStem, Inc. (NASDAQ: NBS), a leader in the emerging cellular therapy industry, and its subsidiary, Progenitor Cell Therapy, LLC (“PCT”), an internationally recognized contract development and manufacturing organization, announced today that PCT has entered into a collaboration with ATMI, Inc. (NASDAQ: ATMI), a global technology company and leader in single-use bioprocess solutions. As industry leaders, PCT and ATMI will collaborate on a non-exclusive basis enabling PCT and PCT’s affiliates to offer to…