function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bartolozzi, Luca & Ghahari, Hassan & Sprecher-Uebersax, Eva', 11],
    ['Bezděk, Aleš & Boucher, Stéphane & Hájek, Jiří', 10],
    ['Cao, Yuyan & Webb, Michael D. & Bai, Ming & Wan, Xia', 17],
    ['Cáceres, Juan Sebastián D. & Grossi, Paschoal Coelho', 12],
    ['Grossi, Paschoal C.', 27],
    ['Grossi, Paschoal Coelho', 22],
    ['Hielkema, Auke J. & Hielkema, Meindert A.', 9],
    ['Holloway, Beverley Anne Dr.', 9],
    ['Huang, Hao & Chen, Chang-Chin', 35],
    ['Huang, Hao & Imura, Yûki & Chen, Chang-Chin', 11],
    ['Paulsen, M. J.', 63],
    ['Paulsen, M. J. & Smith, Andrew', 9],
    ['Reid, C. A. M. & Beatson, M.', 12],
    ['Smith, Andrew B. T.', 13],
    ['Zhan, Zhihong & Young, Daniel K.', 35],
    ['Other (95)', 235]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=530)',
    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);