function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bentham, George', 1],
    ['Blume, Carl Ludwig von', 1],
    ['Fici, Silvio', 2],
    ['Fici, Silvio & Souvannakhoummane, Keooudone', 1],
    ['Jarvis, Charlie', 56],
    ['Linnaeus, Carolus', 17],
    ['Mille, Christian & Henderson, Rosa C. & Cazères, Sylvie', 1],
    ['Olson, E. & Razafimandimbison, Sylvain G.', 1],
    ['Schlechter, Fridrich Richard Rudolf', 1],
    ['Sharma, Prashant P. & Kury, Adriano B. & Giribet, Gonzalo', 3],
    ['Souvannakhoummane, Keooudone & Fici, Silvio', 1],
    ['Szidat, L. & Nani, A.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=86)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);