function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cuvier, Georges', 1],
    ['De Smet, Willem H.', 1],
    ['De Smet, Willem H. & Verolet, Michel', 1],
    ['Fontaneto, D. & Segers, H. & Melone, G.', 1],
    ['Iakovenko, Nataliia & Kasparova, Eva & Plewka, Michael', 2],
    ['Jaturapruek, Rapeepan & Fontaneto, Diego & Meksuwan, Phuripong', 1],
    ['Jr, C. William Birky & Ricci, Claudia & Melone, Giulio', 3],
    ['LUKASHANETS, Dzmitry A. & VEZHNAVETS, Vasily V.', 8],
    ['Rougier, Claude & Pourriot, Roger', 1],
    ['Segers, H.', 1],
    ['Song, Min Ok & Lee, Chang-Ho', 21],
    ['Song, Min Ok & Min, Gi-Sik', 10],
    ['Wei, Nan & Jersabek, Christian D. & Xu, Runlin & Yang, Yufeng', 1],
    ['Zeng, Yue & Wei, Nan & Wang, Qing & Iakovenko, Nataliia S.', 4],
    ['Örstan, Aydin', 3],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=61)',
    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);