Dr. Jonas Cremer is an Assistant Professor in Biology. He is interested in the physiology and growth of prokaryotes. Dr. Cremer studied physics and biophysics in Munich. He was a postdoctoral research at the University of California, San Diego. Before joining Stanford, he was an Assistant Professor at the University of Groningen.

Dr. Jonathan Klein's research interests include preventive services, confidentiality, access to care, youth development, tobacco control, and the translation of research into clinical and public health practice and global child health policy. Current projects address engagement of clinical leaders in countries and communities in health care delivery improvement, accountability measurement, and advocacy for adolescent health, comprehensive sexuality education, and non-communicable disease prevention.