function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chen, Juanjuan & Schmelz, Rüdiger M. & Zhang, Zuxu & Xie, Zhicai', 8],
    ['Christoffersen, Martin L.', 10],
    ['Dózsa-Farkas, Klára & Felföldi, Tamás & Hong, Yong', 13],
    ['Dózsa-Farkas, Klára & Felföldi, Tamás & Nagy, Hajnalka', 9],
    ['Dózsa-Farkas, Klára & Nagy, Hajnalka & Felföldi, Tamás', 7],
    ['Felföldi, Tamás & Dózsa-Farkas, Klára & Nagy, Hajnalka', 13],
    ['Klinth, Marten J. & Rota, Emilia & Erseus, Christer', 25],
    ['Klinth, Mårten J. & Rota, Emilia & Martinsson, Svante', 14],
    ['Lu, Yajing & Xie, Zhicai & Zhang, Junqian', 10],
    ['Nagy, Hajnalka & Dózsa-Farkas, Klára & Felföldi, Tamás', 8],
    ['Ohtaka, Akifumi', 11],
    ['Prantoni, Alessandro & Lana, Paulo C. & Erséus, Christer', 81],
    ['Prantoni, Alessandro Lívio & Wit, Pierre De & Erséus, Christer', 10],
    ['Schmelz, Rüdiger M. & Collado, Rut & Römbke, Jörg', 12],
    ['Šundić, Danijela & Radujković, Branko M.', 17],
    ['Other (44)', 111]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=359)',
    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);