Izikhungo ku Iowa City vula Dental Science N ube nesilinganiso esimaphakathi — 5 (ngokwezilinganiso zomsebenzisi Mapich).
Dental Science N, Iowa City ezitholakele — umtholampilo wamazinyo.
Le datha ikhiqizwa kusetshenziswa izihlungi zangokwezifiso ezisuselwe kukho 1 inkampani, eyethulwe kuleli khasi.