Izikhungo ku Iowa City vula Dental Science S ube nesilinganiso esimaphakathi — 5 (ngokwezilinganiso zomsebenzisi Mapich).
Dental Science S, Iowa City ezitholakele — umtholampilo wamazinyo futhi ezinye izikhungo.
Le datha ikhiqizwa kusetshenziswa izihlungi zangokwezifiso ezisuselwe kukho 6 Izinkampani, eyethulwe kuleli khasi.