The altitude at which a calf is born and raised influences the rate at which mean pulmonary arterial pressure increases with age.
Neary JM, Garry FB, Holt TN, Brown RD, Stenmark KR, Enns RM, Thomas MG. The altitude at which a calf is born and raised influences the rate at which mean pulmonary arterial pressure increases with age. J Anim Sci. 2015 Oct; 93(10):4714-20.