The importance of studying the actual condition of hospital air / C.E.A. Winslow.
License information
You can use this work for any purpose without restriction under copyright law. Read more about this licence.
Credit
The importance of studying the actual condition of hospital air / C.E.A. Winslow. Credit: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.). Public Domain Mark