Skip to main content
. Author manuscript; available in PMC: 2016 Jul 1.
Published in final edited form as: Addict Biol. 2014 Jul 25;20(4):784–798. doi: 10.1111/adb.12163

Figure 1.

Figure 1

Illustration of the study design from screening to discharge. 1 The order in which participants received each of the 3 SL maintenance doses was randomized. 2 The order of testing the 9 IN doses also was randomized. 3 A minimum of 9 days was required to complete testing for each of the 9 IN challenge doses. Though this number of days could vary significantly between maintenance conditions and between participants, depending on holidays, weekends, etc.