title: The female to male ratio (FMR) in dominant nematode populations in the house rat Rattus rattus.
mesh_terms: D000818:Animals; D005260:Female; D008297:Male; D009348:Nematoda; D010124:Oxyuroidea; D051381:Rats / Q000469:parasitology*; D012737:Sex Factors; D013045:Species Specificity