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The combined solution goes into a nasal spray bottle calibrated to deliver a known volume per spray
It is contraindicated for use in neonates and premature infants due to the risk of serious adverse reactions, including gasping syndrome
Measuring red blood cell PLP can be more reliable in this setting, but it's not widely available
This is why injections are particularly recommended for people with chronic fatigue, anaemia, or confirmed absorption issues
Technical support helps researchers to optimize protocols and answer application specific questions
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