function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aguado, M. Teresa & Murray, Anna & Hutchings, Pat', 2],
    ['Barroso, Rômulo & Paiva, Paulo Cesar De', 2],
    ['Faulwetter, Sarah & Simboura, Nomiki & Katsiaras, Nikolaos', 16],
    ['Fukuda, Marcelo Veronesi & Menezes-Moura, Andrezza Ribeiro', 1],
    ['Fukuda, Marcelo Veronesi & Nogueira, João Miguel de Matos', 1],
    ['Gunton, Laetitia M. & Kupriyanova, Elena K. & Alvestad, Tom', 1],
    ['Langeneck, Joachim & Musco, Luigi & Busoni, Giulio', 3],
    ['Linero-Arana, Ildefonso & Diaz Diaz, Oscarn', 2],
    ['Mikac, Barbara', 3],
    ['Paresque, Karla & Fukuda, Marcelo Veronesi', 8],
    ['Ribeiro, Rannyele Passos & Alves, Paulo Ricardo', 1],
    ['Sardá, Rafael & Gil, João & Taboada, Sergi & Gili, Josep Maria', 1],
    ['Soto, Eulogio H. & Martín, Guillermo San', 4],
    ['Çinar, Melih Ertan', 1],
    ['Çinar, Melih Ertan & Gambi, Maria Cristina', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=47)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);