function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bhowmik, Suman', 1],
    ['Das, Gaurab Nandi & Lang, Song-Yun & Singh, Navneet', 7],
    ['Huang, Si-Yao & Wang, Min & Fan, Xiao-Ling', 1],
    ['Huang, Si-Yao & Xiong, Yun & Li, Ying-Chun & Li, Xian-Fu', 2],
    ['Irungbam, Jatishwor Singh & Meitei, Laishram Ricky', 28],
    ['Jong, Rienk De', 2],
    ['Lang, Song-Yun', 2],
    ['Lang, Song-Yun & Bozano, Gian Cristoforo', 2],
    ['Lang, Song-Yun & Duan, Shao-Zhong', 1],
    ['Lang, Song-Yun & Monastyrskii, Alexander L.', 3],
    ['Xian, Chunlan & Leong, Chi Man & Luo, Jiuyang & Jia, Fenglong', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=50)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);