function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bezark, Larry G. & Santos-Silva, Antonio', 5],
    ['Botero, Juan Pablo & Santos-Silva, Antonio', 1],
    ['De Barros, Rafael C. & Da Fonseca, Mailson G.', 3],
    ['Galileo, Maria Helena M. & Martins, Ubirajara R.', 11],
    ['Santos-Silva, Antonio & Botero, Juan Pablo', 1],
    ['Santos-Silva, Antonio & Galileo, Maria Helena M. & Joly, Luis J.', 26],
    ['Valle, Néstor G. & Monné, Marcela L. & Damborsky, Miryam P.', 2],
    ['Wappes, James E. & Santos-Silva, Antonio', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=50)',
    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);