An overlooked financial problem in healthcare: Article processing charges

• Olaf R. van Loon,
• A.J. (Tom) van Loon

Affiliations

Olaf R. van Loon

Privat Klinik im Park, Therapy Department, Badstrasse 50, CH-5116 Schinznach-Bad, Switzerland

A.J. (Tom) van Loon

Corresponding author.; College of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, Shandong, China