function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Berthold, Arnold Adolph', 1],
    ['Desutter-Grandcolas, Laure', 4],
    ['Hollier, John & Bruckner, Harald & Heads, Sam W.', 2],
    ['Ichikawa, Akihiko Mr.', 1],
    ['Iorgu, Ionuț Ştefan & Iorgu, Elena Iulia & Stalling, Thomas', 5],
    ['Komatsu, Takashi & Maruyama, Munetoshi', 2],
    ['MACHÁýKOVÁ, Lenka & FIKÁýEK, Martin', 1],
    ['Maruyama, Munetoshi', 4],
    ['Massa, Bruno', 2],
    ['Skejo, Josip & Rebrina, Fran & Szövényi, Gergely', 4],
    ['Stalling, Thomas & MACHÁýKOVÁ, Lenka', 1],
    ['Yong, Sheyla & Perez-Gelabert, Daniel E.', 2],
    ['de Saussure, Henri L. F.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=30)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);