function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Babenko, Anatoly & Stebaeva, Sophya & Turnbull, Matthew S.', 2],
    ['Baquero, Enrique & Potapov, Mikhail & Jordana, Rafael', 2],
    ['Chai, Rui & Ma, Yitong', 4],
    ['Chang, Yan', 4],
    ['Cipola, Nikolas G. & Katz, Aron D.', 2],
    ['Katz, Aron D.', 6],
    ['Ma, Yitong', 3],
    ['Mayvan, Mahmood Mehrafrooz & Greenslade, Penelope', 2],
    ['Nguyen, Anh T. T. & Thuy, Kim N. & Arbea, Javier I.', 8],
    ['Pan, Zhixiang & Zhang, Feng', 6],
    ['Thibaud, Jean-Marc', 3],
    ['Zhang, Feng', 3],
    ['Zhang, Feng & Chen, Guo-Liang Xu Jian-Xiu', 2],
    ['Zhou, Rong & Ma, Yitong', 2],
    ['Zhou, Rong & Pan, Zhixiang & Ma, Yitong', 4],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=56)',
    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);