function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Junges, João & Gottschalk, Marco S.', 2],
    ['Poppe, Jean Lucas & Gottschalk, Marco Silva & Deprá, Maríndia', 4],
    ['Poppe, Jean Lucas & Schmitz, Hermes José', 5],
    ['Poppe, Jean Lucas & Schmitz, Hermes José & Grimaldi, David', 5],
    ['Poppe, Jean Lucas & Valente, Vera Lúcia Da Silva', 7],
    ['Schmitz, Hermes J. & Gottschalk, Marco S. & Valente, Vera L. S.', 1],
    ['Sinclair, Bradley J.', 1],
    ['Vidal, M. C. & Vilela, C. R.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=26)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);