function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Boros, Gergely & Dózsa-Farkas, Klára', 3],
    ['Chen, Juanjuan & Schmelz, Rüdiger M. & Zhang, Zuxu & Xie, Zhicai', 2],
    ['Christensen, Bent & Dózsa-Farkas, Klára', 1],
    ['Christoffersen, Martin L.', 1],
    ['Costa, Swami Leitão & Johanes, Isabella & Lohmann, Lúcia Garcez', 7],
    ['Degtyarev, Maxim I. & Lebedev, Iurii M. & Kuznetsova, Ksenia G.', 1],
    ['Dózsa-Farkas, Klára & Felföldi, Tamás', 2],
    ['Dózsa-Farkas, Klára & Felföldi, Tamás & Hong, Yong', 5],
    ['Dózsa-Farkas, Klára & Felföldi, Tamás & Nagy, Hajnalka', 2],
    ['Dózsa-Farkas, Klára & Nagy, Hajnalka & Felföldi, Tamás', 4],
    ['Hentz Júnior, Elmar J. & Lohmann, Lúcia G. & Caxambu, Marcelo G.', 5],
    ['Lu, Yajing & Xie, Zhicai & Zhang, Junqian', 7],
    ['Rota, Emilia', 5],
    ['Schmelz, Rüdiger M. & Collado, Rut', 4],
    ['Xie, Zhicai & Liang, Yanling & Wang, Hongzhu', 2],
    ['Other (7)', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=58)',
    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);