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Biomedical subjects

R A Lewin

Publications and source records attributed to R A Lewin.

34 records · Page 2Linked to original sources

Neisseria subflava as a cause of meningitis and septicemia in children. Report of five cases.

In five cases of meningitis or septicemia in children, the causative organism was Neisseria subflava. The organism is similar to N meningitidis. Only one previous case of meningitis caused by N subflava in a child has been found in the literature, but this organism may be more commonly pathogenic than has been thought. The clinical findings and course are not unlike those of septicemia and meningitis due to N meningitidis.

Child, Preschool↗

The problems of Prochloron.

Prokaryotic green algae (prochlorophytes), which contain chlorophylls a and b but no bilin pigments, may be phylogenetically related to ancestral chloroplasts if symbiogenesis occurred. They may be otherwise related to eukaryotic chlorophytes. They could have evolved from cyanophytes by loss of phycobilin and gain of chlorophyll b synthesis. These possibilities are briefly discussed. Relevant evidence from biochemical studies in many collaborative laboratories is now becoming available for the resolution of such questions.

Biological Evolution↗