4 ms·
Fentanyl test strips already exist. See eg https://www.sciencedirect.com/science/article/pii/S0955395918302135 https://www.sciencedirect.com/science/article/pii
by andrewem 8y ago
Fentanyl test strips already exist. See eg https://www.sciencedirect.com/science/article/pii/S0955395918302135 https://www.sciencedirect.com/science/article/pii/S095539591... which studied use of them