function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Albano, Paolo G. & Steger, Jan & Bakker, Piet A. J.', 4],
    ['Conrad, Timothy Abbot', 6],
    ['Hryniewicz, Krzysztof & Amano, Kazutaka', 6],
    ['Ivanova, Mariya B. & Tsurpalo, Alexandra P.', 18],
    ['Kleemann, Karl', 11],
    ['Linnaeus, Carolus', 18],
    ['Oliver, P. Graham', 5],
    ['Oliver, P. Graham & Holmes, Anna & Killeen, Ian & Light, Janice', 8],
    ['Pelorce, Jacques & Poutiers, Jean-Maurice', 7],
    ['Raines, Bret & Huber, Markus', 8],
    ['Röding, Peter Friedrich', 5],
    ['Saether, Kristian P. & Little, Crispin T. S.', 5],
    ['Smith, Edgar A.', 6],
    ['Sowerby, James DeCarle', 5],
    ['Tan, Koh Siang & Tan, Samuel Hui Ming & Sanpanich, Kitithorn', 5],
    ['Other (41)', 72]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=189)',
    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);