Corrigendum to "Challenges in the development of an M4 PAM preclinical candidate: The discovery, SAR, and biological characterization of a series of azetidine-derived tertiary amides" [Bioorg. Med. Chem. Lett. 27(23) (2017) 5179–5184]. Issue 17 (15th September 2018) - Tarr, James C.; Wood, Michael R.; Noetzel, Meredith J.; Melancon, Bruce J.; Lamsal, Atin; Luscombe, Vincent B.; Rodriguez, Alice L.; Byers, Frank W.; Chang, Sichen; Cho, Hyekyung P.; Engers, Darren W.; Jones, Carrie K.; et al.