function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Borojevic, Radovan & Klautau, Michelle', 3],
    ['Fassbender, Nico & Stefanoudis, Paris V', 1],
    ['Klautau, Michelle', 1],
    ['Klautau, Michelle & Lopes, Matheus Vieira & Guarabyra, Bruna', 2],
    ['Klautau, Michelle & Lopes, Matheus Vieira & Tavares, Gabriela', 2],
    ['Lanna, Emilio & Cavalcanti, Fernanda F. & Cardoso, Lilian', 2],
    ['Leocorny, Pedro & Alencar, Aline & Fromont, Jane', 7],
    ['Lopes, Matheus Vieira & Klautau, Michelle', 11],
    ['Polejaeff, N.', 3],
    ['Rapp, Hans Tore & Göcke, Christian & Tendal, Ole Secher', 3],
    ['Rützler, Klaus & Piantoni, Carla & Van, Rob W. M.', 1],
    ['Valderrama, Diego & Rossi, André Linhares', 5],
    ['Van Soest, Rob W. M.', 1],
    ['Van, Rob W. M. & De, Nicole J.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=44)',
    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);