function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anlaş, S.', 1],
    ['Asenjo, Angélico & e, Sistemática & de, Bioecologia & Coleoptera', 2],
    ['Assing, V.', 7],
    ['Assing, Volker', 49],
    ['Assing, Volker & V, North', 2],
    ['Della Rocca, Francesca & Stefanelli, Silvia & Cardarelli, Elisa', 1],
    ['Eldredge, Taro', 6],
    ['Gusarov, Vladimir I.', 2],
    ['Hlaváč, Peter & Newton, Alfred F. & Maruyama, Munetoshi', 1],
    ['Klimaszewski, Jan & Chandler, Donald S. & Davies, Anthony', 1],
    ['Pace, R.', 28],
    ['Pace, Roberto', 2],
    ['Roberto Pace', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=103)',
    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);