function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Buchner, Peter & Šumpich, Jan', 21],
    ['Clarke, J. F. Gates', 20],
    ['Du, Zhaohui & Li, Houhun & Wang, Shuxia', 17],
    ['Hoare, Robert J. B.', 24],
    ['Hu, Sha & Wang, Shuxia', 18],
    ['Medeiros, Matthew J.', 39],
    ['Meyrick, Edward', 93],
    ['Phillips-Rodríguez, Eugenie & Brown, John W. & Hallwachs, Winnie', 41],
    ['Wang, S. X. & Li, H. H.', 31],
    ['Wang, Shuxia & Du, Zhaohui & Li, Houhun', 106],
    ['Wang, Shuxia & Hu, Sha & Li, Houhun', 244],
    ['Wang, Shuxia & Jia, Yanyan', 42],
    ['Wang, Shuxia & Liu, Chen', 86],
    ['Yuan, G. X. & Wang, S. X.', 18],
    ['Zhu, Xiaoju & Zhang, Li & Wang, Shuxia', 24],
    ['Other (95)', 450]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=1274)',
    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);