THE DECEMBER SMOG. A FIRST SURVEY.
D000397:Air Pollution; D004739:England; D006801:Humans; D009017:Morbidity; D009026:Mortality; D012905:Smog; D013455:Sulfur
D012905:Smog; D013455:Sulfur
AIR POLLUTION; ENGLAND; MORBIDITY; MORTALITY; SULFUR