function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Blache, J. & Miton, F.', 2],
    ['Boulenger, George Albert', 11],
    ['Chaudhuri, B. L.', 3],
    ['Day, F.', 3],
    ['Fowler, Henry Weed', 6],
    ['Liyandja, Tobit L. D. & Stiassny, Melanie L. J.', 8],
    ['Nichols, J. T. & Griscom, L.', 3],
    ['Pellegrin, J.', 3],
    ['Peters, Wilhelm Carl Hartwig', 3],
    ['Sinaseli M. Tshibwabwa & Melanie L. J. Stiassny', 21],
    ['Smith, H. M.', 3],
    ['Steindachner, F.', 5],
    ['Sudasinghe, Hiranya & Ranasinghe, R. H. Tharindu', 4],
    ['Timo Moritz', 16],
    ['Çiçek, Erdoğan & Fricke, Ronald & Eagderi, Soheil', 6],
    ['Other (34)', 36]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=133)',
    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);