'Sad for science:' After travel ban, Iranians at Harvard wonder if they should take their expertise elsewhere

'Sad for science:' After travel ban, Iranians at Harvard wonder if they should take their expertise elsewhere

In a bio-technology lab at Harvard University's medical school an international group of highly skilled scientists are dreaming up new ways to engineer artificial human tissue with 3-D printers. Some of their brainpower these days, though, isn't focused on the science but instead on U.S.

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