function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Araya, Juan Francisco & Catalan, Ricardo', 4],
    ['Breure, Abraham S. H. & Ablett, Jonathan D.', 6],
    ['Brito, Taís Cestari De & Fraga, Luciano Sturmer De', 1],
    ['Cavallari, Daniel C. & Dornellas, Ana Paula S.', 1],
    ['Fontenelle, José Heitzmann & Simone, Luiz Ricardo L.', 2],
    ['Miquel, Sergio Eduardo & Cerdeño, Esperanza', 1],
    ['Salvador, Rodrigo B. & Silva, Fernanda S. & Cavallari, Daniel C.', 1],
    ['Silva, Fernanda dos Santos & Simone, Luiz Ricardo L.', 2],
    ['Simone, Luiz Ricardo L.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=20)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);