@incollection{Arnaudov17, author = {Atanas Arnaudov}, title = {Immunotherapy with Dialyzable Leukocyte Extracts Containing Transfer Factor}, booktitle = {Immunotherapy}, publisher = {IntechOpen}, address = {Rijeka}, year = {2017}, editor = {Krassimir Metodiev}, chapter = {14}, doi = {10.5772/66524}, url = {https://doi.org/10.5772/66524} }