Robins, James M Commentary: Counterfactual causation and streetlamps: what is to be done? [electronic resource] - International journal of epidemiology 12 2016 - 1830-1835 p. digital Publication Type: Journal Article; Research Support, N.I.H., Extramural; Comment ISSN: 1464-3685 Standard No.: 10.1093/ije/dyw231 doi