Graduate admissions 2022

Thank you for the detailed information. My students lab and research experience is in stem Cell therapy. And yes, we are interested in the PhD program. We were hoping to explore Stem cell therapy for Neuro regenerative therapies. This was the field that professors in multiple universities interviewed and expresses interest in affording summer opportunity. But admission was rejected. Without this experience and without this working rapport with professor, how can we establish contact and identify fit?
Thank you again for taking time to share valuable input