function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Casciotta, Jorge & Almirón, Adriana & Piálek, Lubomír', 1],
    ['Casciotta, Jorge Rafael & Gómez, S. E. & Toresanni, N. I.', 1],
    ['González-Bergonzoni, Iván & Loureiro, Marcelo', 2],
    ['Loureiro, Marcelo & Zarucki, Matías & Malabarba, Luiz R.', 1],
    ['Malabarba, Luiz R. & Malabarba, Maria Cláudia & Reis, Roberto E.', 5],
    ['Ota, Renata Rúbia & Deprá, Gabriel de Carvalho', 1],
    ['Reis, Roberto E. & Malabarba, L. R.', 2],
    ['Staeck, Wolfgang', 1],
    ['Turcati, Andréia & Serra-Alanis, Wilson Sebastián', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=15)',
    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);