I guess perhaps it brings this "faint line" indicator to question as possibly introducing subjectivity into a test. One doctor would conclude a very faint line to be negative whereas another doctor could mark it as positive to increase the hospital government reimbursement revenue.
if you have sinuses full of orange juice, perhaps you do need a doctor
I'm not sure this really proves much.
I guess perhaps it brings this "faint line" indicator to question as possibly introducing subjectivity into a test. One doctor would conclude a very faint line to be negative whereas another doctor could mark it as positive to increase the hospital government reimbursement revenue.