function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Beier, Max', 104],
    ['Chamberlin, Joseph Conrad', 19],
    ['Di Caporiacco, L.', 6],
    ['Feng, Zegang & Wynne, J. Judson & Zhang, Feng', 8],
    ['Feng, Zegang & Zhang, Feng & Chen, Jun', 13],
    ['Gardini, Giulio', 20],
    ['Guo, Xiangbo & Zhang, Feng', 6],
    ['Hadži, Jovan', 13],
    ['Hoff, C. Clayton', 5],
    ['Morikawa, Kinichi', 5],
    ['Novák, János', 19],
    ['Novák, János & Dányi, László', 7],
    ['Redikorzev, V.', 6],
    ['Zaragoza, Juan A. & Pérez, Toni', 9],
    ['Ćurčić, B. P. M.', 16],
    ['Other (36)', 78]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=334)',
    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);