function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Carpenter, Kenneth', 1],
    ['Cope, E. D.', 3],
    ['Cuthbertson, Robin S. & Holmes, Robert B.', 2],
    ['Dong, Zhiming', 1],
    ['Erickson, Gregory M. & Kenneth H. Olson', 1],
    ['Evans, David C.', 3],
    ['Gates, Terry A. & Sampson, Scott D.', 5],
    ['Kenneth Carpenter & D. Bruce Young', 3],
    ['Lambe, LM', 1],
    ['Leidy, J.', 3],
    ['Manitkoon, Sita & Deesri, Uthumporn & Warapeang, Prapasiri', 15],
    ['Mcdonald, Andrew T.', 2],
    ['Norman, David B.', 2],
    ['Prieto-Márquez, Albert', 6],
    ['Sahni, Ashok', 2],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=56)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);