K. Yamamoto

Interleukin-10 level in sputum is reduced in bronchial asthma, COPD and in smokers.

K. Satoh, S. Takanashi, Y. Hasegawa, 1999, The European respiratory journal.

Eotaxin Level in Induced Sputum Is Increased in Patients with Bronchial Asthma and in Smokers

S. Takanashi, Y. Hasegawa, Y. Kanehira, 2003, Respiration.