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11. [The development of hygiene in the USSR during the past 50 years]. Letavet AA Vestn Akad Med Nauk SSSR; 1967; 22(11):87-95. PubMed ID: 4909144 [No Abstract] [Full Text] [Related]
12. [Not Available]. Fan Chêng-chih Shi Da Xue Bao; 1981; 26():117-58. PubMed ID: 21213901 [No Abstract] [Full Text] [Related]