What is lymphatic filariasis commonly known as?

Which of the following disabilities is MOST commonly observed in children eligible for special education as they start kindergarten?

a. Hearing impairments b. Autism c. Visual impairments d. Developmental delay

What is the initial event in the pathogenesis of idiopathic pulmonary artery hypertension (IPAH)?

a. Insult to the pulmonary endothelium b. Elevated level of serotonin c. Monoclonal proliferation of endothelial cells d. Vascular remodeling