function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bai, Yukun & Lin, Lu & Pan, Meng & Fan, Xinlei', 7],
    ['Bundhun, Digvijayini & Senanayake, Indunil C.', 2],
    ['Cao, Lingxue & Luo, Dun & Lin, Wu & Yang, Qin & Deng, Xiaojun', 6],
    ['Huang, Shengting & Xia, Jiwen & Zhang, Xiuguo & Sun, Wenxiu', 8],
    ['Lambert, Christopher & Schweizer, Lena', 5],
    ['Liu, Hong Y. & Luo, Dun & Huang, Han L. & Yang, Qin', 2],
    ['Long, Hui & Zhang, Qian & Hao, Yuan-Yuan & Shao, Xian-Qiang', 3],
    ['Rathnayaka, Achala R. & Chethana, K. W. Thilini', 7],
    ['Sun, Wenxiu & Huang, Shengting & Xia, Jiwen & Zhang, Xiuguo', 10],
    ['Tibpromma, Saowaluck & Hyde, Kevin D. & Bhat, Jayarama D.', 3],
    ['Wijayawardene, Nalin N. & Dai, Dong-Qin & Premarathne, Bhagya M.', 14],
    ['Yang, Qin & Fan, Xin-Lei & Guarnaccia, Vladimiro', 15],
    ['Yang, Qin & Jiang, Ning & Tian, Cheng-Ming', 11],
    ['Yang, Qin & Tang, Jie & Zhou, Guo Y.', 4],
    ['Zhu, Haiyan & Pan, Meng & Bonthond, Guido & Tian, Chengming', 12],
    ['Other (4)', 8]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=117)',
    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);