“I got 197 rejections and one acceptance,” he said — but one was all he needed.
The man who said yes was Anirban Maitra, a professor of pathology and oncology at the prestigious Johns Hopkins University School of Medicine and a top researcher in pancreatic cancer.
Andraka, working with Maitra, developed a dip-stick paper sensor that tests the level of a pancreatic cancer biomarker — a protein called mesothelin — in blood or urine.
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