function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ampai, Natee & Rujirawan, Attapol & Arkajag, Jirachai', 1],
    ['Badli-Sham, Baizul Hafsyam & Syafiq, Muhamad Fatihah', 1],
    ['Chan, Kin Onn & Muin, Mohd Abdul & Anuar, Shahrul & Andam, Joel', 1],
    ['Chen, Wei-Cai & Mo, Yun-Ming & Lin, Li & Qin, Kun', 1],
    ['Figueroa, Alex & Low, Martyn E. Y. & Lim, Kelvin K. P.', 1],
    ['Kuramoto, Mitsuru & Satou, Naoki & Oumi, Shohei', 1],
    ['Li, Shi-Ze & Chen, Ji-Jun & Su, Hai-Jun & Liu, Jing', 1],
    ['Lin, Shi-Shi & Li, Yuan-Hang & Su, Hong-Lin & Yi, Hui', 1],
    ['Liu 1, Shuo & Rao, Dingqi & Zhang, Dongru & Lwin, Ye Htet', 1],
    ['Liu, Shuo & Hou, Mian & Wang, Qiaoyan & Rao, Dingqi & Li, Song', 1],
    ['Liu, Xiaolong & He, Yanhong & Wang, Yufan & Beukema, Wouter', 1],
    ['Luong, Anh Mai & Do, Quyen Hanh & Hoang, Chung Van', 1],
    ['Mulcahy, Daniel G. & Lee, Justin L. & Miller, Aryeh H.', 2],
    ['Shize, Li & Ning, Xu & Jingcai, Lv & Jianping, Jiang & Gang, Wei', 2],
    ['Wang, Ying-Yong & Lau, Michael Wai-Neng & Yang, Jian-Huan', 2],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=22)',
    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);