Complex sentence: Her father took her to the family pediatrician; noting a great increase in white blood cells from a sample he took, he ordered additional tests and referred her to hematologist Alexander English at the Ottawa Civic Hospital.
Split into simpler sentences: Her father took her to the family pediatrician who noted a great increase in white blood cells from a sample he took. He ordered additional tests and referred her to hematologist Alexander English at the Ottawa Civic Hospital.