This illustration depicts a photomicrographic view of Streptococcus (Diplococcus) pneumoniae bacteria, using Gram-stain technique, 1979. Streptococcus pneumoniae is one of the most common organisms ...
BECAUSE of the importance of purine analogues in the chemotherapy of human neoplastic disease 1, several investigations have been made on their mode of action and the mechanism of resistance 2 to them ...
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