A Lecture ON THE INTERPRETATION OF X-RAY NEGATIVES: Delivered before the St. Pancras and Islington Division of the British Medical Association at the Great Northern Central Hospital

A. H. Pirie
1910 BMJ (Clinical Research Edition)  
doi:10.1136/bmj.2.2592.584 fatcat:bltilxn2enendbqpede3sptg54