function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Appolloni, Massimo & Smriglio, Carlo & Amati, Bruno', 2],
    ['Cavallari, Daniel C. & Dornellas, Ana Paula S.', 7],
    ['Dall, William Healey', 2],
    ['Gurumayum, S. D.', 2],
    ['Habe, Tadashige & Ito, Kiyoshi', 2],
    ['Hansen, Thomas', 6],
    ['Huelsken, Thomas & Marek, Carina & Schreiber, Stefan', 17],
    ['Hülsken, Thomas & Clemmensen, Marina & Hollmann, Michael', 2],
    ['Kiel, Steffen & Sami, Marco & Taviani, Marco', 2],
    ['Luca, Javier Di & Zelaya, Diego G.', 2],
    ['Mariottini, Paolo & Smriglio, Carlo & Oliverio, Marco', 4],
    ['Pedriali, Luca & Sosso, Maurizio & Dell’Angelo, Bruno', 16],
    ['Röding, Peter Friedrich', 3],
    ['Simone, Luiz Ricardo L.', 8],
    ['Sowerby, James DeCarle', 3],
    ['Other (16)', 21]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=99)',
    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);