function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Deng, Ming-Qin & Zhong, Yang & Irfan, Muhammad & Wang, Lu-Yu', 4],
    ['Gong, Li-Jun & Zhong, Yang', 2],
    ['Gong, Li-jun & Zeng, Meng-yun & Zhong, Yang & Yu, Hui-liang', 2],
    ['Jiang, Tongyao & Zhao, Qingyuan & Li, Shuqiang', 17],
    ['Jäger, Peter', 8],
    ['Jäger, Peter & Li, Shuqiang & Krehenwinkel, Henrik', 9],
    ['Jäger, Peter & Vedel, Vincent', 22],
    ['Liu, Jie', 6],
    ['Liu, Jie & Li, Shuqiang & Jäger, Peter', 2],
    ['Quan, Dan & Zhong, Yang & Liu, Jie', 4],
    ['Yang, Zi-Zhong & Wu, Ya-Ying & Li, Zhi-Min & Zhang, Bao-Shi', 3],
    ['Zhang, Bao-Shi & Zhang, Feng & Zhang, Zhi-Sheng', 4],
    ['Zhang, Feng & Zhang, Bao-Shi & Zhang, Zhi-Sheng', 5],
    ['Zhang, He & Jaeger, Peter & Liu, Jie', 5],
    ['Zhang, He & Zhu, Yang & Zhong, Yang & Jäger, Peter & Liu, Jie', 121],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=217)',
    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);