function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Di, Zhi-Yong & Wu, Ying-Liang & Cao, Zhi-Jian & Xiao, Heng', 14],
    ['Di, Zhiyong & He, Yawen & Wu, Yingliang & Cao, Zhijian', 8],
    ['Di, Zhiyong & Xu, Xiaobo & Cao, Zhijian & Wu, Yingliang', 15],
    ['Kovařík, František', 23],
    ['Kovařík, František & Lowe, Graeme & Stockmann, Mark', 21],
    ['Kovařík, František & Soleglad, Michael E. & Košulič, Ondřej', 6],
    ['Kovařík, František & Štundlová, Jana & Fet, Victor', 15],
    ['Kovařík, František & Šťáhlavský, František', 6],
    ['Sulakhe, Shauri & Deshpande, Shubhankar & Dandekar, Nikhil', 9],
    ['Tang, Victoria', 6],
    ['Tropea, Gioele', 8],
    ['Tropea, Gioele & Fet, Victor & Parmakelis, Aristeidis', 8],
    ['Tropea, Gioele & Parmakelis, Aristeidis', 5],
    ['Tropea, Gioele & Yağmur, Ersen Aydın', 6],
    ['Yağmur, Ersen Aydın', 6],
    ['Other (41)', 70]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=226)',
    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);