A fetal blood pulse oximetry method and apparatus using a first wavelength of light at about 655 to 705 nm and a second wavelength of light at about 820 to 900 nm. Measurements are taken through a mother's abdomen. Processing is performed to extract absorption information related to fetal arterial blood with calculation of fetal oxygen saturation from the extracted data.

 
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> Simplified water-bag technique for magnetic susceptibility measurements on the human body and other specimens

> Microelectrode catheter for mapping and ablation

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