function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Appolloni, Massimo & Smriglio, Carlo & Amati, Bruno', 9],
    ['Bakker, Piet A. J. & Albano, Paolo G.', 37],
    ['Blake, Joseph (Rev.)', 3],
    ['Cavallari, Daniel Caracanhas & Almeida, Sérgio Mendonça', 6],
    ['Darragh, Thomas A.', 2],
    ['Hansen, Thomas', 6],
    ['Harzhauser, Mathias & Guzhov, Aleksandr & Landau, Bernard', 148],
    ['Islamoğğlu, Yeşşim & Dominio, Stefano & Kowalke, Thorsten', 4],
    ['Liston, Andrew D. & Knight, Guy T. & Sheppard, David A.', 6],
    ['Mariottini, Paolo & Smriglio, Carlo & Oliverio, Marco', 3],
    ['Moore, Charles', 8],
    ['Sacchetti, Claudia & Landau, Bernard & Ávila, Sérgio P.', 9],
    ['Strong, Ellen E.', 7],
    ['Strong, Ellen E. & Bouchet, Philippe', 4],
    ['Zvonareva, Sofya & Kantor, Yuri', 6],
    ['Other (21)', 25]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=283)',
    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);