function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ale-Rocha, Rosaly & Freitas, Geovânia', 15],
    ['Ale-Rocha, Rosaly & Freitas, Geovânia & Mathis, Wayne N.', 5],
    ['Carvalho-Filho, Fernando S. & Barbosa, Rodrigo R.', 2],
    ['Ebejer, Martin J. & Nicolosi, Giuseppe', 2],
    ['Evenhuis, Neal L.', 2],
    ['Freitas, Geovânia & Ale-Rocha, Rosaly', 13],
    ['Grimaldi, David A.', 20],
    ['Malloch, John Russell', 2],
    ['Mathis, Wayne N. & Freidberg, Amnon', 3],
    ['Mathis, Wayne N. & Rung, Alessandra & Kotrba, Marion', 20],
    ['Mathis, Wayne N. & Sueyoshi, Masahiro', 3],
    ['Pollini Paltrinieri, Lucia & Rohacek, Jindrich', 2],
    ['Roháček, Jindřich', 4],
    ['Roháček, Jindřich & Andrade, Rui', 3],
    ['Rung, Alessandra', 6],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=105)',
    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);