Prevalence of COPD in Patients with Lung Cancer
Mekov, E., Yanev, N., Kurtelova, N., Mihalova, T., Yankov, G., Yamakova, Y., Petkov, R.
Spontaneous Perforation of a Malignified Corrosive Stricture of the Esophagus and Subsequent Perforation of a Giant Duodenal Stress ULCUS
Yankov, G., Yamakova, Y., Vladimirov, B., Petkov, R., Mekov, E., Ilieva, V., Yanev, N., Petrov, D.
Echocardiographic Changes of the Left Ventricle and Left Atrium in COPD
Mekov, E., Yanev, N., Kurtelova, N., Mihalova, T., Yamakova, Y., Petkov, R.