This uncommon situation is characterised by stroma containing small mesenchymal cells and fbrosis. Mycoplasma pneumoniae causes higher and lower respiratory tract an infection in schoolaged youngsters, and outbreaks of M pneumoniae infection occur in communities and faculties. Answering the frst question—why does a treatment work—is important for discrim inating key components of a therapy that are required for its success from components of the remedy that may be eliminated with out lowering efcacy symptoms iron deficiency cheap elocon 5g otc.