Received: 16 December 2019
Accepted: 1 February 2021
First Online: 9 February 2021
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board (IRB) at An-Najah National University (Protocol Reference No.: 3SEP2017). The required written approval was provided by the Palestinian ministry of health in order to collect data from the included primary health care centers. Additionally, the participants were asked to provide a verbal consent to be included in the study.
: Not applicable
: The authors declare that they have no competing interests.