function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Asenjo, Angélico & e, Sistemática & de, Bioecologia & Coleoptera', 2],
    ['Cameron, Malcolm', 1],
    ['Gravenhorst, Johann Ludwig Christian', 1],
    ['Lü, Liang', 1],
    ['Lü, Liang & Zhou, Hong-Zhang', 22],
    ['Majka, Christopher & Klimaszewski, Jan', 1],
    ['Makranczy, György', 25],
    ['Navarrete-Heredia, José Luis & Gómez-Rodríguez, Cecilia', 4],
    ['Schülke, M.', 1],
    ['Semionenkov, O. I. & Gildenkov, M. Yu.', 1],
    ['Sharp, David', 1],
    ['Webster, Reginald P. & Sweeney, Jon D. & DeMerchant, Ian', 1],
    ['Wollaston, T. Vernon', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=62)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);