Fig. 2From: Thoracoscopy as a safe and effective technique for exploring calves affected with bovine respiratory diseaseEvaluation of different approach areas for inserting the thoracoscope into calves chronically affected with BRD. X = recommended approach in the respective area; S = intercostal space in the recommended area. Intercostal spaces are shown in inverted order (from caudal to cranial) to facilitate interpretation by endoscopistsBack to article page