function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chamberlin, Ralph V.', 1],
    ['De Armas, Luis F.', 1],
    ['Hernandes, Fabio Akashi & Cokendolpher, James Craig', 1],
    ['Krüger, Jessica & Dunlop, Jason A.', 1],
    ['Monjaraz-Ruedas, R.', 1],
    ['Monjaraz-Ruedas, Rodrigo', 1],
    ['Monjaraz-Ruedas, Rodrigo & Francke, Oscar F.', 6],
    ['Monjaraz-Ruedas, Rodrigo & Francke, Oscar F. & Prendini, Lorenzo', 2],
    ['Monjaraz-Ruedas, Rodrigo & Prendini, Lorenzo & Francke, Oscar F.', 5],
    ['Santos, Adalberto J. & Dias, Sidclay C. & Brescovit, Antonio D.', 1],
    ['Villarreal, Osvaldo & Sánchez, Nestor & Ascenção, Antonio de', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=21)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);