function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['DeMarmels, Jurg', 5],
    ['Dijkstra, Klaas-Douwe B. & Kipping, Jens & Mézière, Nicolas', 2],
    ['Gonzalez Soriano, Enrique & Noguera, Felipe', 1],
    ['Grand, Daniel & Marinov, Milen & Jourdan, Herve & Cook, Carl', 1],
    ['Haber, William A.', 2],
    ['Kompier, Tom & Holden, James', 1],
    ['Kormondy, E. J.', 2],
    ['Legrand, Jean', 6],
    ['Lieftinck, M. A.', 4],
    ['Neiss, Ulisses Gaspar & Marmels, Jürg De', 1],
    ['Rambur, Jules Pierre', 1],
    ['Sawant, Dattaprasad & Kambli, Amol', 1],
    ['Takiya, Daniela Maeda & Santos, Allan Paulo Moreira', 6],
    ['Theischinger, G.', 1],
    ['Theischinger, Gunther & Marinov, Milen & Bybee, Seth', 13],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=48)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);