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In reference to your letter of July 28, 1970, I can only say that Dr. Woolley is correct. The pneumococci were serotyped and the use of the term Phage Type is incorrect. I am sorry to have committed this error.
HELDRICH FJ. DIPLOCOCCUS PNEUMONIAE BACTEREMIA-Reply. Am J Dis Child. 1970;120(5):493. doi:10.1001/archpedi.1970.02100100153028