References
- Reid , DD . 1969 . The beginnings of bronchitis . Proc R Soc Med , 62 : 311 – 316 .
- et al. Effects of acute controlled exposure to SO2 on respiratory mechanics in healthy male adults J Am Physiol 1972 12 17 252
- Purvis , MR and Ehrlich , R . 1963 . Effect of atmospheric pollutants on susceptibility to respiratory infection: II. Effect of nitrogen dioxide . J Infect Dis , 113 : 72
- Douglas , JWB and Waller , RE . 1966 . Air pollution and respiratory infection in children . Br J Prev Soc Med , 20 : 1 – 8 .
- Lunn , JE , Knowelden , J and Handyside , AJ . 1967 . Patterns of respiratory illness in Sheffield school children . Br J Prev Soc Med , 21 : 7 – 16 .
- Toyoma , T . 1967 . Air pollution and its health effects in Japan . Arch Environ Health , 8 : 153 – 173 .
- et al. The Chattanooga school study: Effects of community exposure to nitrogen dioxide: II. Incidence of acute respiratory illness J Air Pollut Control Assoc 1970 20 382 388
- Grizzle , JE , Starmer , CF and Koch , GG . 1969 . Analysis of categorical data by linear models . Biometrics , 25 : 489 – 504 .