For how many Y have you had at least one such episode of cough with phlegm that lasted 1 W or more per Y
for how many y have you had at least one such episode of cough with phlegm that lasted 1 w or more per y
For how many years have you had at least one such episode of cough with phlegm that lasted 1 week or more per year
for how many years have you had at least one such episode of cough with phlegm that lasted 1 week or more per year