function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bellamy, C. L.', 1],
    ['Carlton, Christopher E. & MacRae, Ted C. & Tishechkin, Alexey K.', 15],
    ['Conte, John L. Le', 1],
    ['Eschscholtz, Johann Friedrich von', 1],
    ['Forbicioni, Leonardo & Tormen, Nicola & Curletti, Gianfranco', 2],
    ['Hallinen, Marie J. & Steffens, Wayne P. & Schultz, Jennifer L.', 19],
    ['Macrae, Ted C.', 2],
    ['Maier, Crystal A. & Ivie, Michael A.', 6],
    ['Perger, Robert & Guerra, Fernando', 2],
    ['Pérez-Hernández, Cisteil Xinum', 10],
    ['Wellso, Stanley G. & Manley, Gary V.', 12],
    ['Westcott, R. L. & Nelson, G. H.', 2],
    ['Westcott, Richard L.', 47],
    ['Westcott, Richard L. & Barr, William F.', 3],
    ['Woodley, Norman E. & Touroult, Julien', 2],
    ['Other (8)', 8]
  ]);
  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);