[Incidence of urinary calculi in and among patients treated at the therapeutic hospital departments of the District of Vracha].
D002031:Bulgaria; D006748:Hospital Departments; D006801:Humans; D013812:Therapeutics; D014545:Urinary Calculi / Q000453:epidemiology*
Pikochnokamennata volest po klinichniia material na terapevtichnite otdeleniia vuv Vrachanski okrug