function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chevrette, Marc G. & Carlson, Caitlin M. & Ortega, Humberto E.', 1],
    ['Choi, Jung-Hye & Cha, Ju-Hee & Bae, Jin-Woo & Cho, Jang-Cheon', 3],
    ['Ham, You Ju & Jeong, Ji Won & Im, Wan-Taek & Kim, Won-Yong', 6],
    ['Kim, Mi-Sun & Jeong, Seong-Hwa & Kang, Joo-Won & Kim, Seung-Bum', 3],
    ['Ko, Kwan Su & Cha, Chang-Jun & Im, Wan-Taek & Kim, Seung-Bum', 5],
    ['Li, Kaiqin & Guo, Yihui & Wang, Junzhen & Wang, Zhiyong', 1],
    ['Li, Lei & Wang, Jie & Zhou, Yong-jun & Lin, Hou-wen', 2],
    ['Liu, Yang & Ding, Lijian & Deng, Yueting & Wang, Xiao & Cui, Wei', 1],
    ['Sripreechasak, Paranee & Phongsopitanun, Wongsakorn', 1],
    ['Zhang, Qiao-Yan & Qin, Song & Luo, Xiao-Xia & Xia, Zhan-Feng', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=24)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);