The SonoWorld Online Textbook of Ultrasonography consists of content from multiple sources.

Prefix "UC" Featured journal articles from the quarterly publication Ultrasound Clinics, courtesy of Elsevier.

Prefix"N" Selected chapters from the Nicer Foundation’s textbook, courtesy of Amersham Health & sponsored by Siemens Ultrasound. Editors: Barry B. Goldberg, M.D. and Holger Pettersson, M.D.

Prefix “MG”: Selected chapters from the textbook Diagnostic Ultrasound: A Logical Approach. Editors: John D. McGahan, MD and Barry B. Goldberg, MD.