 | Up a level |
Beshay, Morris; Kaiser, Heiko; Niedhart, Dagmar; Reymond, Marc A; Schmid, Ralph A (2007). Emphysema and secondary pneumothorax in young adults smoking cannabis. European journal of cardio-thoracic surgery, 32(6), pp. 834-8. Oxford: Elsevier Science B.V. 10.1016/j.ejcts.2007.07.039
