JECH Office Address:             JECH Editorial Office, Department of Public Health,

                                                 Hamadan University of Medical Sciences, Pajuhesh Square,

                                                 Shaheed Fahmideh Ave., Hamadan, Iran

Postal Code:                            6517838636

Tel:                                          +98 81 3838 2022

Email:                                      jech.hamadan@gmail.com | jech@umsha.ac.ir

Publisher Address:                   Hamadan University of Medical Sciences Publications

                                                 (UMSHA Press),  Central Building, Hamadan University of

                                                 Medical Sciences, Pajuhesh Square, Shaheed Fahmideh Ave., 

                                                 Hamadan, Iran                                               

Postal Code:                            6517838636

Tel:                                          +98 81 3131 5048

Fax:                                         +98 81 3838 0509

Production Address:               Maad Rayan Publishing Company, Krummer Timpen 45,

                                                48143, Munster, Germany.

Tel:                                          +4917672357957