Figure 1From: Study protocol: safety and efficacy of propranolol in newborns with Retinopathy of Prematurity (PROP-ROP): ISRCTN18523491 Beta 2 -adrenoreceptors stimulation and ROP: role of propranolol in pharmacological blockade of abnormal neovascularization. Red arrows show the likely effects of propranolol.Back to article page