Potential use of ultrasound in chemical monitoring /

"Cooperative agreement no. CR818353."

Airborne ultrasound : measurement and possible adverse effects /

Mode of access: Internet.

Evaluation of Ohmic Instrument Company model UPM-30 ultrasound power meter /

Mode of access: Internet.

Considerations underlying the use of ultrasound to detect gallstones and foreign bodies in tissue.

AD 657 255.

Transactions of the Chicago Gynaecological Society.

Mode of access: Internet.

The American gynaecological and obstetrical journal.

Mode of access: Internet.