https://www.sciopen.com/
SciOpen | Professional open access resource for discovery of scientific and technical content
SciOpen is a professional open access resource for discovery of scientific and technical content published by the Tsinghua University Press (TUP) and its...
open access resourcescientific and technicalfor discovery
https://manifold.escholarship.org/projects/ultrasound-in-resource-limited-settings
Ultrasound in Resource-Limited Settings: A Case Based, Open Access Text | Manifold Projects
An online, open source book focusing on ultrasound in tropical medicine and resource-limited environments. Our goal is to create an up-to-date and useful...