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A recent study suggested that plasma levels of 5-MT, a compound related to serotonin metabolism, may be decreased in CFS patients, but this has been interpreted as a confounder caused by serotonin-selective reuptake inhibitor (SSRI) use in these patients (40)

doi:10.1161/CIR.0000000000001078 Sun J, Li Y, Zhao M, et al

Risks of Peyronie's Disease include advanced age, diabetes and erectile dysfunction
BMJ Open 2020;10:e034692
