function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Lin, Yun & Bi, Hai-Yan & Sun, Jun & Sun, Qian', 2],
    ['Murugan, Soumya & Nair, Maya C.', 1],
    ['Phonepaseuth, Phongphayboun & Souladeth, Phetlasy', 3],
    ['Ratheesh Narayanan, M. K. & Mini, V. & Shaju, T. & Sujana, K. A.', 1],
    ['Resmi, Sekarathil & Nampy, Santhosh', 2],
    ['Resmi, Sekarathil & Nampy, Santhosh & Akshatra, Pracy Fernandes', 1],
    ['Sukumaran, Santhosh Kumar Ettickal & Filimban, Faten Zubair', 1],
    ['Wai, Jarearnsak Sae & Hu, Jer-Ming', 11]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=22)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);