Kempermann G, Kuhn HG, Gage FH
Such designs would be smaller but more informative, because they test whether a pathway-defined phenotype responds to a pathway-matched intervention
Sadly, I didn't end up using them all, but was very careful to store the remainder in a dark, cool spot (which certainly never exceeded 25 degrees Celsius), and the ampoules themselves have never been taken out of their boxes for any reason, so exposure to light won't have been an issue
Other common mistakes include shaking instead of gently swirling, spraying solvent directly onto fragile powder, using an unlabeled vial, exposing the solution to light, storing it in the refrigerator door, and confusing sterile water with bacteriostatic water