FEI, Yixuan. Financial Analysis of AbbVie, Johnson & Johnson, and Pfizer in the Pharmaceutical Industry. Transactions on Economics, Business and Management Research, [S. l.], v. 14, p. 332–338, 2024. DOI: 10.62051/wa0ksf92. Disponível em: https://wepub.org/index.php/TEBMR/article/view/4795. Acesso em: 21 may. 2026.