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Vitamin B12 is found in meat, fish, eggs and milk - but not in fruit or vegetables
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J Power Sources 337:189196 Sun JF, Guo LZ, Sun X, Gao MM, Zhang JY, Liang LW et al (2020) Green bio-template fabrication of Fe Derivatives@Carbon composites and porous carbon sheets toward advanced li-ion capacitors as low-cost electrodes
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