function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Andréfouët, Serge & Chen, Wei-Jen & Kinch, Jeff & Mana, Ralph', 4],
    ['Bleeker, Pieter', 4],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 5],
    ['Fowler, Henry Weed', 6],
    ['Fricke, Ronald', 13],
    ['Gill, T. N.', 3],
    ['Günther, Albert Charles Lewis Gotthilf', 3],
    ['Herre, Albert W. C. T.', 4],
    ['Ho, Hsuan-Ching & Shao, Kwang-Tsao', 3],
    ['Li, S. - C.', 2],
    ['Linnaeus, Carolus', 4],
    ['Nakabo, Tetsuji', 2],
    ['Nurettin Meriç & Lütfiye Eryilmaz & Müfit Özulug', 5],
    ['Peters, Wilhelm Carl Hartwig', 2],
    ['Regan, C. T.', 5],
    ['Other (32)', 35]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=100)',
    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);