function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cao, Ting & Yu, Jia-Rui & Nguy ễn, Trang Th ị Thu', 2],
    ['Chen, Che-Chih & Wu, Sheng-Hua & Chen, Chi-Yu', 2],
    ['Chen, Jun-Zhu & Zhao, Chang-Lin', 4],
    ['Du, Ping & Wu, Fang & Tian, Xue-Mei', 3],
    ['Duan, Ziyan & Guan, Qianxin & Luo, Kaiyue & Zhao, Changlin', 3],
    ['Guan, Qian-Xin & Li, Yi-Fei & Zhao, Chang-Lin', 2],
    ['Karunarathna, Samantha C. & Priyashantha, K Hasith', 8],
    ['Liu, Zhan-Bo & Dai, Yu-Cheng', 2],
    ['Regio, Nicolas do Carmo & Palacio, Melissa', 2],
    ['Telleria, M. Teresa & Duenas, Margarita & Martin, Maria P.', 6],
    ['Tian, Xue-Mei & Man, Xiao-Wu & Liu, Zhan-Bo', 3],
    ['Wang, Chao-Ge & Vlasak, Josef & Dai, Yu-Cheng', 4],
    ['Wei, Qiu-Lu & Zheng, Hai-Fu & Shao, Yuan-Yuan & Rasheed, Usman', 2],
    ['Wu, Zi-Qiang & Xu, Tai-Min & Shen, Shan & Liu, Xiang-Fu', 2],
    ['Zhang, Xiaojie & Yuan, Qi & Su, Jiangqing & Zhao, Changlin', 13],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=64)',
    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);