function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cho, Hae Jin & Lee, Hyun & Li, Vladimir & Jargalmaa, Suldbold', 1],
    ['Dovana, Francesco & Justo, Alfredo & Ferisin, Giuliano', 1],
    ['Jr, Nelson Menolli & Justo, Alfredo & Arrillaga, Pedro', 5],
    ['Justo, Alfredo & Malysheva, Ekaterina & Bulyonkova, Tatiana', 2],
    ['Karunarathna, Samantha C. & Priyashantha, K Hasith', 1],
    ['Kaygusuz, Oguzhan & Knudsen, Henning & Jr, Nelson Menolli', 1],
    ['Kaygusuz, Oğuzhan & Justo, Alfredo & Knudsen, Henning', 1],
    ['Polhorský, Adam & Justo, Alfredo & Szabóová, Dana', 1],
    ['Qi, Zheng-Xiang & Qian, Ke-Qing & Yue, Lei & Wang, Li-Bo', 4],
    ['Reschke, Kai & Lotz-Winter, Hermine & Fischer, Christian W.', 1],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 2],
    ['Xu, Jiang & Hosen, Md. Iqbal & Zhang, Ming & Li, Tai-Hui', 1],
    ['Ševčíková, Hana & Borovička, Jan & Gates, Genevieve', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=22)',
    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);