function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Averyanov, Leonid V. & Thai, Tran Huy & Nguyen, Van Canh', 1],
    ['Chen, Wen-Shuai & Lei, Ming & Ma, Chong-Bo & Jin, Xiao-Hua', 1],
    ['Dey, Santanu & Phom, Limamanen & Bhattacharjee, Avishek', 1],
    ['Kumar, Pankaj & Gale, Stephan W. & Kocyan, Alexander', 1],
    ['Lee, Chi Te & Wu, Jin Hua & Wang, Yu Qi', 1],
    ['Liao, Min & Cheng, Yue-Hong & Zhang, Jun-Yi & Feng, Yu', 1],
    ['Liu, Qiang & Wu, Xun-Feng & Zhou, Shi-Shun & Li, Jian-Wu', 6],
    ['Liu, Qiang & Zhou, Shi-Shun & Li, Ren & Tan, Yun-Hong', 3],
    ['Nguyen, Dinh Hiep & Averyanov, Leonid V. & Dang, Van Son', 1],
    ['Ormerod, Paul & Kurzweil, Hubert & Watthana, Santi', 13],
    ['Wu, Xun-Feng & Ye, De-Ping & Pan, Bo & Lin, Xiang-Qun', 1],
    ['Ya, Ji-Dong & Wang, Wan-Ting & Liu, Yun-Long & Jiang, Hong', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=32)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);