function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Camile Sorbo Fernandes & Ivanklin Soares Campos-Filho', 8],
    ['Campos-Filho, I. S. & Araujo, Paula Beatriz', 2],
    ['Campos-Filho, I. S. & Araujo, Paula Beatriz & Bichuette, M. E.', 1],
    ['Campos-Filho, I. S. & Montesanto, Giuseppe', 2],
    ['Campos-Filho, Ivanklin Soares & Araujo, Paula Beatriz', 9],
    ['Campos-Filho, Ivanklin Soares & Fernandes, Camile Sorbo', 4],
    ['Campos-Filho, Ivanklin Soares & Sfenthourakis, Spyros', 4],
    ['Carpio-Díaz, Yesenia M. & López-Orozco, Carlos Mario', 1],
    ['Lanchester, W. F.', 1],
    ['López-Orozco, Carlos Mario & Campos-Filho, Ivanklin Soares', 3],
    ['Ocampo-Maceda, Ana Teresa & Ruelas-Cabana, Carlos Miguel', 2],
    ['Perez-Gelabert, Daniel E.', 1],
    ['Schmidt, Christian', 65],
    ['Taiti, Stefano & Howarth, Francis G.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=104)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);