(NaKU[ERSKIE O[IBKI I MATERINSKAQ SMERTNOSTX (B/s - (NlURXE(B, (Na(B.(N`(B.s; (NsOSENKOWA(B, (Nn(B.(Nq(B.s; (NmINISTERSTWO ZDRAWOOHRANENIQ sssrs; (NcENTRALXNYJ INSTITUT USOWER[ENSTWOWANIQ WRA^EJs ((NmOSKWA (B:s (Nb(B. (NI(B.,s, 1947)
Keywords: (NaKU[ERSTWOs; (NoSLOVNENIQ BEREMENNOSTIs; (NpOSLERODOWOJ PERIODs