Graduate students who are candidates for the PhD are accepted into TSGP with a commitment of full financial support (tuition, stipend, health insurance fees) while their research and academic studies progress satisfactorily.  The Graduate School guarantees this support for 5 years, as will be stated in each student's acceptance letter; every effort is made to provide funding for students in good standing whose work extends beyond the 5th year, and so far no student has ever had to leave any program in the Division of Biology and Medicine because of a loss of financial support beyond the 5th year.