@incollection{Walker12,
author = {Xue-jie Yu and David H. Walker},
title = {Rickettsia and Rickettsial Diseases},
booktitle = {Bioterrorism},
publisher = {IntechOpen},
address = {Rijeka},
year = {2012},
editor = {Stephen A. Morse},
chapter = {9},
doi = {10.5772/30977},
url = {https://doi.org/10.5772/30977}
}