Nkọwa:A na-eme ihe nkiri a na-ehi ụra na-adịgide, plastik, nke a na-ejikọ ya na agba na-anọchite anya isi ihe owuwu. Ihe nlereanya a dịkwa mma maka neurology, izugbe ọmụmụ, ọzụzụ maka ịwa ahụ, nwekwara ike ịbụ nnukwu ihe egwuri egwu ma nyere aka ịghọta banyere ehi toso.