Ramadan S, Sridharan V, Koturbash I, et al. A priming dose of protons alters the early cardiac cellular and molecular response to 56Fe irradiation. Life Sciences in Space Research. 2016;8:8-13. doi:10.1016/j.lssr.2015.12.001.

Ramadan S, Guo L, Li Y, Yan B, Lu W. Hollow Copper Sulfide Nanoparticle-Mediated Transdermal Drug Delivery. Small (Weinheim an der Bergstrasse, Germany). 2012;8(20):3143-3150. doi:10.1002/smll.201200783.