[1977, World Rheumatism Year. Prevention of streptococcal infections].
D006801:Humans; D007391:International Cooperation; D012213:Rheumatic Fever / Q000517:prevention & control*; D013290:Streptococcal Infections / Q000517:prevention & control*
1977, anul mondial al reumatismului. Preveniţi infecţia streptococcică!