function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chaul, Júlio Cezar Mário', 3],
    ['Longino, John T.', 29],
    ['Mezger, Dirk & Pfeiffer, Martin', 1],
    ['Satria, R. & Jannatan, R.', 2],
    ['Ulysséa, Mônica Antunes & Prado, Lívia P.', 1],
    ['Wild, A. L.', 5],
    ['Wild, Alexander L.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=42)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);