Pregunta
In Japan, Nakamura et al reported an 83 year old woman with eczema on topical steroids who 3 days after the second dose of tozinameran Pfizer BioNTech developed a diffuse BP rash that required oral steroids and high dose intravenous immunoglobulin therapy with gradual improvement zithromax online MTX and MTX polyglutamate inhibit dihydrofolate reductase, which catalyses the conversion of dihydrofolate into tetrahydrofolate