function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Fan, Qi & Yang, Tao & Li, Hui & Wang, Xue-Mei & Liao, He-Fa', 2],
    ['Peng, Xing-Can & Wen, Ting-Chi & Wei, De-Ping & Liao, Yu-Hong', 3],
    ['Sun, Tao & Zou, Weiqiu & Dong, Quanying & Huang, Ou', 1],
    ['Tang, Dexiang & Zhao, Jing & Lu, Yingling & Wang, Zhiqin', 2],
    ['Tang, Dexiang & Zhu, Juye & Luo, Lijun & Hou, Donghai', 1],
    ['Tasanathai, Kanoksri & Noisripoom, Wasana & Chaitika, Thanyarat', 1],
    ['Wang, Yao & Wu, Hui-Juan & Tran, Ngoc Lan & Zhang, Guo-Dong', 1],
    ['Wei, De-Ping & Wanasinghe, Dhanushka N. & Hyde, Kevin D.', 1],
    ['Wen, Ting-Chi & Zhu, Ru-Cai & Kang, Ji-Chuan & Huang, Ming-He', 1],
    ['Xiao, Yuan-Pin & Hongsanan, Sinang & Hyde, Kevin D.', 2],
    ['Yang, Yu & Xiao, Yuanpin & Yu, Gangjiang & Wen, TingChi', 1],
    ['Zha, Ling-Sheng & Kryukov, Vadim Yu & Ding, Jian-Hua', 26],
    ['Zou, Weiqiu & Tang, Dexiang & Xu, Zhihong & Huang, Ou', 2],
    ['de la Fuente, Javier Isaac & García-Jiménez, Jesús', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=45)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);