function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arai, Hisao P. & Smith, John W.', 1],
    ['Artüz, M. Levent & Fricke, Ronald', 1],
    ['Bariche, Michel & Fricke, Ronald', 3],
    ['Brook, George', 1],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 6],
    ['Golani, Daniel', 2],
    ['Laan, Richard Van Der & Eschmeyer, William N. & Fricke, Ronald', 1],
    ['Lipej, Lovrenc & Dulčić, Jakov', 1],
    ['Ninni, E.', 1],
    ['Nurettin Meriç & Lütfiye Eryilmaz & Müfit Özulug', 5],
    ['Psomadakis, Peter Nick & Giustino, Stefano & Vacchi, Marino', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=23)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);