Gastroenterology

Novel device for stomach complaints is successful in human trial

An endoscopic mapping device, developed over the course of a decade by scientists at the Auckland Bioengineering Institute, consists of an inflatable sphere covered in sensors, delivered down the esophagus and able to measure ...

Ophthalmology

Lab-grown retinas explain why people see colors dogs can't

With human retinas grown in a petri dish, researchers discovered how an offshoot of vitamin A generates the specialized cells that enable people to see millions of colors, an ability that dogs, cats, and other mammals do ...

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