1. Rationale and derivation of MI and TI – A review;Abbott;Ultrasound in Medicine and Biology,1999
2. Fetal thermal effects of diagnostic ultrasound;Abramowicz;Journal of Ultrasound in Medicine,2008
3. Bioeffects considerations for the safety of diagnostic ultrasound;AIUM;Journal of Ultrasound in Medicine,1988
4. Bioeffects and Safety of Diagnostic Ultrasound;AIUM,1993
5. Acoustic Output Measurement Standard for Diagnostic Ultrasound Equipment: Revision 1, 2004;AIUM/NEMA,2007