(NrEVIM TRUDA I OTDYHA RABOTA@]IH PODROSTKOW (B/s - (NaRNOLXDI(B, (NiOSIF aLEKSANDROWI^s; (NgRUEWA(B, (NlILIAN gEORGIEWNAs ((NmOSKWA (B:s (NmEDICINA(B,s, 1973)
Keywords: (NrABO^IE PODROSTKIs; (NzDOROWXE I GIGIENAs