function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Badrawy, Haitham B. M.', 9],
    ['Badrawy, Haitham B. M. & Mohammad, Salwa K.', 9],
    ['Ferguson, David J. & Irwin, Michael E. & Yeates, David K.', 10],
    ['Ferguson, David J. & Lambkin, Christine L. & Yeates, David K.', 8],
    ['Hauser, Martin & Webb, Donald W.', 7],
    ['Irwin, Michael E. & Winterton, Shaun L.', 48],
    ['Lyneborg, Leif', 55],
    ['Meigen, Johann Wilhelm', 12],
    ['Shaun L., Winterton', 26],
    ['Webb, Donald W.', 50],
    ['Webb, Donald W. & Hauser, Martin', 9],
    ['Webb, Donald W. & Metz, Mark A.', 80],
    ['Winterton, Shaun L.', 59],
    ['Winterton, Shaun L. & Irwin, Michael E.', 22],
    ['Winterton, Shaun L. & Lambkin, Christine L.', 23],
    ['Other (43)', 122]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=549)',
    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);