function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Amiri, Masoumeh & Prendini, Lorenzo & Hussen, Fenik Sherzad', 3],
    ['Di, Zhiyong & Xu, Xiaobo & Cao, Zhijian & Wu, Yingliang', 1],
    ['Kovařík, František', 7],
    ['Kovařík, František & Lowe, Graeme', 5],
    ['Kovařík, František & Lowe, Graeme & Ranawana, Kithsiri B.', 2],
    ['Kovařík, František & Mazuch, Tomáš', 3],
    ['Kovařík, František & Yağmur, Ersen Aydin & Fet, Victor', 7],
    ['Kovařík, František & Yağmur, Ersen Aydin & Moradi, Mohammed', 5],
    ['Kovařík, František & Yağmur, Ersen Aydın & Moradi, Mohammed', 1],
    ['Navidpour, Shahrokh & Fet, Victor & Kovařík, František', 2],
    ['Navidpour, Shahrokh & Kovařík, František & Soleglad, Michael E.', 1],
    ['Navidpour, Shahrokh & Soleglad, Michael E. & Fet, Victor', 1],
    ['Prendini, Lorenzo & Bird, Tharina L.', 1],
    ['Ranawana, Kithsiri B. & Dinamithra, Nandana P.', 1],
    ['Teruel, Rolando & Rein, Jan Ove', 1],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=42)',
    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);