[Social hygiene studies of Zemstvo physicians of the present Kirovograd region].
D049672:History, 19th Century; D012423:Rural Health / Q000266:history*; D012425:Russia (Pre-1917)
Sotsial'no-gigienicheskie issledovaniia zemskikh vracheĭ nyneshneĭ Kirovogradskoĭ oblasti.