1. Department of Industrial Engineering, University of Pittsburgh, Pittsburgh, PA, USA;
2. Department of Obstetrics, Gynecology & Reproductive Sciences, Divisions of Ultrasound and Maternal-Fetal Medicine, Magee-Womens Hospital of UPMC, Pittsburgh, PA, USA;
3. Department of Bioengineering, University of Pittsburgh, PA, USA;
4. McGowan Institute for Regenerative Medicine, Pittsburgh, PA, USA