The Rockefeller University seeks students who have a natural curiosity about science and who have demonstrated aptitude, enthusiasm and commitment to research. Students who enter the Ph.D. program must have received a degree of bachelor or master of arts or sciences, or doctor of medicine or equivalent international qualification. Applicants should be able to document a high level of achievement in the biological, chemical, mathematical or physical sciences. Each year, up to 30 students enter the Ph.D. program.