hat
Élaborer dwòg a trete kè domaje soufri de yon pwoblèm kle: yo difisil nan egzamen. "Nou pa kapab kenbe koupe pasyan louvri yo retire echantiyon kè-tisi. Sa se jis pa pratik oswa etik,"Te di Chris Denning nan Nottingham University.
eng
Devising drugs to treat damaged hearts suffers from a key problem: they are difficult to test. “We cannot keep cutting patients open to remove heart-tissue samples. That is just not practical or ethical,” said Chris Denning of Nottingham University.