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.
Scatter plot of within-cat mean sleeping respiratory rate (SRRmean) against age in 59 echocardiographically normal (black shapes) and 28 apparently healthy cats (white shapes), separated by geographic location. SRRmean declines with age for the first 4–5 years, and then plateaus. Cats in Israel (Isr) had higher SRRmean than comparably aged cats in Sweden (Swe) or the USA (US). Ital = Italy
