Table 1.

The patient characteristics.

Patient Characteristics (n = 7)
Gender (M/F)	4/3
Age (years)	65−89
Smoking (yes/no)	0/7
Diabetes (yes/no)	0/7
Rheumatic (yes/no)	0/7
Asthma (yes/no)	1/6
Heart disease (yes/no)	2/5