@misc{indiciae589867ab514a, title = {Hepatitis E vaccines: progress and prospects.}, author = {Harald Claus Worm and Gerhard Wirnsberger}, year = {2004}, doi = {10.2165/00003495-200464140-00002}, url = {https://pubmed.ncbi.nlm.nih.gov/15233590/}, note = {Source identifier: 15233590} }