function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Artaev, Oleg & Ruchin, Alexander B.', 1],
    ['Ayres, W. O.', 3],
    ['Bonaparte, Charles Lucien', 1],
    ['Borodin, N. A.', 1],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 1],
    ['Eagderi, Soheil & Mouludi-Saleh, Atta & Esmaeili, Hamid Reza', 6],
    ['Fitzinger, Leopold Joseph Franz Johann & Heckel, J. J.', 5],
    ['Forster, Joannes Reinholdus', 3],
    ['Güldenstädt, A. J. von', 2],
    ['Linnaeus, Carolus', 5],
    ['Love, Milton S. & Bizzarro, Joseph J. & Cornthwaite, Maria', 2],
    ['Lovetsky, A.', 2],
    ['Nurettin Meriç & Lütfiye Eryilmaz & Müfit Özulug', 2],
    ['Sayyadzadeh, Golnaz & Esmaeili, Hamid Reza', 6],
    ['Çiçek, Erdoğan & Jawad, Laith & Eagderi, Soheil', 2],
    ['Other (14)', 14]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=56)',
    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);