Petra Helbig

发表

J. Roberts, M. Hall, P. Han, 2021, Journal of Clinical and Translational Science.

D. Petereit, B. Guadagnolo, E. Cook, 2009, Journal of health care for the poor and underserved.

E. Cook, D. Petereit, B. Guadagnolo, 2009, Public health reports.