As discoveries of new antibiotics decreased , chemists began to wonder if certain variations of these drugs could be synthesized and also used as medicine .
As discoveries of new antibiotics decreased , chemists began to wonder if certain variations of these drugs could be synthesized and also used as medicine .
As discoveries of new antibiotics decreased , chemists began to wonder if certain variations of these drugs could be synthesized and also used as medicine .
Beheben Sie die Grammatikfehler: As discoveries of new antibiotics decreased , chemists began to wonder if certain variations of these drugs could be synthesized and also used as medicine . Ausgabe: