title: Letter: Sickling pain and season.
mesh_terms: D000755:Anemia, Sickle Cell / Q000503:physiopathology*; D003080:Cold Temperature; D006801:Humans; D006813:Humidity; D009518:New York; D010146:Pain / Q000209:etiology*; D011014:Pneumonia / Q000150:complications; D012621:Seasons; D014552:Urinary Tract Infections / Q000150:complications