диагноз подтверждается только вот так:
At diagnosis, MMA levels, in urine and/or plasma, were measured in 178 patients (89.4% of the sample). Of these patients, 177 (99.4%) had elevated values.
Homocysteine levels, in plasma and/or urine, were measured in 181 patients (90.95% of the sample). All of the patients (100%) presented elevated values.
Vitamin B12 and/or folic acid values were measured in 123 patients (61.8% of the sample). All had normal or high values, except for one patient in whom low folic acid values were observed.
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