function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Born, Ignaz von', 1],
    ['Bozzetti, L & Sargent, D. M.', 1],
    ['Cavallari, Daniel C. & Dornellas, Ana Paula S.', 1],
    ['Geiger, Daniel L.', 1],
    ['Kronenberg, Gijs C. & Vermeij, G. J.', 2],
    ['Linnaeus, Carolus', 23],
    ['Liverani, V', 1],
    ['Low, Martyn E. Y. & Tan, Siong Kiat', 1],
    ['Maxwell, Stephen J. & Dekkers, Aart M. & Rymer, Tasmin L.', 5],
    ['Pacaud, Jean-Michel', 1],
    ['Röding, Peter Friedrich', 17],
    ['Sacchetti, Claudia & Landau, Bernard & Ávila, Sérgio P.', 2],
    ['Strong, Ellen E.', 1],
    ['Tröndlé, Jean & Salvat, Bernard', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=59)',
    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);