Kletting, Stephanie, Sarah Barthold, Urska Repnik, Gareth Griffiths, Brigitta Loretz, Nicole Schneider-Daum, Cristiane de Souza Carvalho-Wodarz, and Claus Michael Lehr. “Co-Culture of Human Alveolar Epithelial (hAELVi) and Macrophage (THP-1) Cell Lines”. ALTEX - Alternatives to animal experimentation 35, no. 2 (April 20, 2018): 211-222. Accessed April 18, 2021. https://www.altex.org/index.php/altex/article/view/89.