Official websites use .gov A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Diseases of the respiratory organs: being original ideas advanced by a close student of nature and her mysteries, on subjects which have ever been full of perplexity to the medical profession
Diseases of the respiratory organs: being original ideas advanced by a close student of nature and her mysteries, on subjects which have ever been full of perplexity to the medical profession