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JAMA|October 16, 1981
Penicillin V for group A streptococcal pharyngotonsillitis. A randomized trial of seven vs ten days' therapyR H Schwartz, R L Wientzen, F Pedreira, et al.Pediatrics|March 1, 1985
Involuntary smoking and incidence of respiratory illness during the first year of lifeF A Pedreira, V L Guandolo, E J Feroli, et al.Pageof 1