I need a statistical analyser familiar with Kaplan Meier survival analysis

hello, I need some statistical help doing Kaplen meier survival analysis on some data comparing time to event ( rejection) in two cohorts of transplant patients ( one group of 19 and another of 34) the method etc has already been advised and analysis performed but the data has been updated and my statistician has gone on mat leave and the stats team here are too busy to help.
is this the sort of thing you can help with?
thanks Henk