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.
Nuclear magnetic resonance (NMR) spectrograms of urine from wild type male mice and wild type female mice at different stages of the estrus cycle. Shown is one representative spectrogram per sex and estrus cycle stage and for amines with spectra that differed between males and females either by NMR or by GC/MS analysis. TMAO, trimethylamine oxide; TMA, trimethylamine.
