Acknowledgments
The Aristotle University Property Development and Management
Company financially supported this work. The author would
like to thank the following people for their contribution to this
study: Evangelia Doua, Theano Lefkou, Fani Mantzouridou, Konstantina
Nanou, Dimitra Papaliaga, Theodora Pragalaki, who collected
samples for this study and performed the microbiological
examination of samples. Thanks are also extended to Evangelia
Doua for entering the data.