title: More on influenza A and pneumonitis.
mesh_terms: D016027:Heart Transplantation; D006801:Humans; D009980:Influenza A virus; D007251:Influenza, Human / Q000150:complications*; D008297:Male; D008875:Middle Aged; D011024:Pneumonia, Viral / Q000209:etiology*; D011183:Postoperative Complications / Q000209:etiology