function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bianucci, Giovanni & Lambert, Olivier & Post, Klaas', 4],
    ['Bianucci, Giovanni & Miján, Ismael & Lambert, Olivier', 13],
    ['Carroll, Emma L. & McGowen, Michael R. & McCarthy, Morgan L.', 1],
    ['Jo, Yeong-Seok & Baccus, John T. & Koprowski, John L.', 9],
    ['Lambert O.', 10],
    ['Lambert, Olivier & Muizon, Christian de & Duhamel, Guy', 12],
    ['Miyazaki, Nobuyuki & Hasegawa, Yoshikazu', 1],
    ['Parnaby, Harry E. & Ingleby, Sandy & Divljan, Anja', 3],
    ['Ramassamy, Benjamin & Lambert, Olivier & Collareta, Alberto', 1],
    ['Russell A. Mittermeier & Don E. Wilson', 20]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=74)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);