Elsevier B.V..

Oman Medical Specialty Board.

John Wiley and Sons Inc.

Springer Science and Business Media B.V..

SAGE Publications Ltd.

Elsevier B.V..

John Wiley and Sons Inc.

Elsevier Editora Ltda.

Birkhauser.

Elsevier Inc..

Institute of Physics.

Multidisciplinary Digital Publishing Institute (MDPI).

Institute of Physics.

Springer Science and Business Media Deutschland GmbH.

Springer Science and Business Media Deutschland GmbH.