So it must be that there is some reason why exposure causes COLDS at one time and not at another.
"The Book of Life: Vol. I Mind and Body; Vol. II Love and Society"
Upton Sinclair
18. How can you prevent COLDS?
"A Handbook of Health"
Woods Hutchinson
On the contrary, by sleeping in a room like this you will escape three out of four COLDS that you usually catch.
"A Handbook of Health"
Woods Hutchinson