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.
Development and progression of papillary and nodular carcinomas depending on the concentration and period of administration of N‐butyl‐N‐(4‐hydroxybutyl) nitrosamine (BHBN) in female dogs.( 34 ) (Reproduced with permission from Medical view Co., T. Kakizoe, Development and Progression of Bladder Cancer, 1995.)
