function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chen, Zhuoer & Yin, Haiqiang & Xu, Xiang', 1],
    ['Dankittipakul, Pakawin & Chami-Kranon, Thanaphum', 2],
    ['Dankittipakul, Pakawin & Wang, Xin-Ping', 2],
    ['Jiang, Xuan-Kong & Guo, Xuan & Yu, Zhi-Gang & Chen, Hui-Ming', 1],
    ['Li, Bing & Zhao, Zhe & Chen, Haifeng & Wu, Zhiyan & Li, Shuqiang', 6],
    ['Liu, Ji-he & Xiao, Yong-hong & Zhang, Meng-zhen & Xu, Xiang', 2],
    ['Liu, Jie & Li, Shuqiang', 3],
    ['Liu, Jie & Li, Shuqiang & Pham, Dinh-Sac', 16],
    ['Okumura, Ken-ichi', 2],
    ['Wang, XIN-PING & Griswold, CHARLES E. & Miller, JEREMY A.', 60],
    ['Wang, Xiaoxiao & Wu, San’An & Li, Shuqiang', 2],
    ['Wang, Xin-Ping & Jäger, Peter', 5],
    ['Xu, Xiang & Li, Shuqiang', 10],
    ['Zamani, Alireza', 2],
    ['Zhang, Zhi-Sheng & Zhu, Ming-Sheng & Wang, Xin-Ping', 4],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=122)',
    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);