function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cao, Ting & Yu, Jia-Rui & Nguy ễn, Trang Th ị Thu', 1],
    ['Dou *, Ming-Zhu & Li *, Min & Jia, Ze-Feng', 3],
    ['Filippova, Nina & Zvyagina, Elena & Rudykina, Elena', 80],
    ['Jarvis, Charlie', 2],
    ['Ma, Ao & Hu, Jia-Jun & Chen, Yue-Qu & Wang, Xin & Tuo, Yong-Lan', 4],
    ['Mardones, Melissa & Carranza-Velazquez, Julieta', 9],
    ['Na, Qin & Hu, Yaping & Zeng, Hui & Song, Zhizhong & Ding, Hui', 4],
    ['Ordynets, Alexander & Scherf, David & Pansegrau, Felix', 11],
    ['Wang, Chao-Ge & Chen, Jian & Liu, Hong-Gao & Dai, Yu-Cheng', 2],
    ['Zhou, Meng & Wang, Chao-Ge & Wu, Ying-Da & Liu, Shun', 1],
    ['Zhou, Meng & Wu, Fang & Dai, Yu-Cheng & Vlasak, Josef', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=119)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);