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Merck
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Cortical blindness caused by hypoxemia following an asthma attack.

Japanese journal of ophthalmology (2011-07-01)
Tomoyuki Kunishige, Ataru Omori, Amane Tateno, Noriaki Yahata, Junko Hori
MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Methylcobalamin, vitamin B12 analog