Maki, Yohei, Jun Miyata, Ryohei Suematsu, Hisashi Sasaki, Yoshifumi Kimizuka, Yuji Fujikura, and Akihiko Kawana. “Principal Component Analysis of Clinical Characteristics of Pulmonary Sarcoidosis With or Without Extrapulmonary Lesions: A Single-Center Observational Study in Japan”. Sarcoidosis, Vasculitis and Diffuse Lung Diseases 41, no. 1 (March 26, 2024): e2024022. Accessed January 20, 2025. https://www.mattioli1885journals.com/index.php/sarcoidosis/article/view/13328.