Overdispersion

You have access
Models for Counts and Particle Size Distributions of Subvisible Particle Data
Jorge Quiroz, Elsa M. Vazquez, Jeffrey Wilson, Anita Dabbara and Jason K. Cheung

PDA Journal of Pharmaceutical Science and Technology May 2021, 75 (3) 213-229; DOI: https://doi.org/10.5731/pdajpst.2020.011510