function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Badli-Sham, Baizul Hafsyam & Syafiq, Muhamad Fatihah', 2],
    ['Dufresnes, Christophe & Ambu, Johanna & Prasad, Vishal Kumar', 1],
    ['Figueroa, Alex & Low, Martyn E. Y. & Lim, Kelvin K. P.', 1],
    ['Nguyen, Tao Thien & Nguyen, Huy Hoang & Ninh, Hoa Thi', 1],
    ['Nguyen, Tao Thien & Ninh, Hoa Thi & Orlov, Nikolai', 1],
    ['Ninh, Hoa Thi & Nguyen, Tao Thien & Orlov, Nikolai', 7],
    ['Pan, Yuanqiang & Hou, Mian & Yu, Guohua & Liu, Shuo', 1],
    ['Yu, Guohua & Hui, Hong & Hou, Mian & Wu, Zhengjun & Rao, Dingqi', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=15)',
    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);