Source:
Gigiena i sanitariia [Gig Sanit] 1976 Aug (8), pp. 15-9.Publisher: Izdatelstvo Meditsina Country of Publication: Russia (Federation) NLM ID: 0412700 Publication Model: Print Cited Medium: Print ISSN:
Source:
Gigiena i sanitariia [Gig Sanit] 1977 Aug (8), pp. 19-22.Publisher: Izdatelstvo Meditsina Country of Publication: Russia (Federation) NLM ID: 0412700 Publication Model: Print Cited Medium: Print ISSN: