Boydell P, Pike R, Crossley D, Torrington A
Animal Medical Centre Referral Services, Chorlton, Manchester.
J Small Anim Pract. 1997 Oct;38(10):466-7. doi: 10.1111/j.1748-5827.1997.tb03443.x.
Two dogs developed unilateral Horner's syndrome attributable to the placement of a thoracic drainage tube. Signs resolved following removal of the chest drains.