function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['LANDMAN, NEIL H. & COBBAN, WILLIAM A.', 3],
    ['LANDMAN, NEIL H. & JOHNSON, RALPH O. & EDWARDS, LUCY E.', 2],
    ['Landman, Neil H.', 4],
    ['Landman, Neil H. & Kennedy, W. James & Cobban, William A.', 1],
    ['Landman, Neil H. & Kennedy, W. James & Larson, Neal L.', 3],
    ['Larson, Neal', 1],
    ['Sowerby, James DeCarle', 1],
    ['Witts, James D. & Landman, Neil H. & Garb, Matthew P.', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=20)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);