Biostatistics and Survival Analysis

I had a great experience working with Zack. He was always available and provided timely response to my concerns. I needed a survival analysis done in a study that was recently not accepted by reviewers. He performed the work very well providing feedback and adapting to comments of previous reviewers. He also provided Kaplan-Meier graphs adapted to my preferences. I highly recommend his work.

-VL, Sao Paulo, Brazil