Gascon M, Cirach M, Martinez D, Dadvand P, Valentin A, Plasencia A, Nieuwenhuijsen MJ. Normalized difference vegetation index (NDVI) as a marker of surrounding greenness in epidemiological studies: the case of Barcelona city. Urban For Urban Green. 2016 Sep;19:88-94. doi: 10.1016/j.ufug.2016.07.001
Rothman KJ. Estimation of confidence limits for the cumulative probability of survival in life-table analysis. J Chronic Dis. 1978 Jan 1;31(8):557-60. doi: 10.1016/0021-9681(78)90043-7
Rothman KJ. A pictorial representation of confounding in epidemiologic studies. J Chronic Dis. 1975 Feb;28(2):101-8.
Rothman KJ, Keller AZ. The effect of joint exposure to alcohol and tobacco on risk of cancer of the mouth and pharynx. J Chronic Dis. 1972 Dec;25(12):711-6.