Nginikeze uhlu lwamadolobha ayisikhombisa angcoliswe kakhulu eMelika
Ngokwe - American Lung Association, amadolobha angu - 7 angcoliswe kakhulu ahlanganisa amadolobha ama - 5 aseCalifornia. Uhlu lulandelana kanje, i-Los Angeles-Long Beach, i-Bakersfield, i-Visalia, i-Fresno-Madera-Hanford, i-Phoenix-Mesa, i-San Diego-Chula Vista-Carlsbad, ne-Denver-Aurora