HERPA

呼吸部分

Do you usually bring up any phlegm from your chest, first thing in the morning in winter?

1 Yes

2 No

3 Don't know

IF (whether brings up phlegm in the morning in winter = [no, don’t know]) [(HeRpa = [2, 3]

| HERPB

| Do you usually bring up any phlegm from your chest, during the day or at night in the winter?

| 1 Yes

| 2 No

END OF FILTER

IF (whether brings up phlegm in the morning in winter = yes) OR (whether brings up phlegm

during the day or at night in winter = yes) [(HeRpa = 1) OR (HeRpb = 1)]

| HERPC

| Do you bring up phlegm like this on most days for as much as three months each year?