function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chaban, E. M. & Chernyshev, A. V.', 9],
    ['Cunha, Carlo M. & Salvador, Rodrigo B.', 27],
    ['Delgado, Marlon & Freire, Fúlvio Aurélio de Morais', 11],
    ['Gosliner, Terrence', 9],
    ['Gutiérrez, Manuel Caballer & Ortea, Jesús & Rivero, Nelsy', 23],
    ['Hansen, Thomas', 10],
    ['Linnaeus, Carolus', 24],
    ['Luca, Javier Di & Zelaya, Diego G.', 10],
    ['Mehrotra, Rahul & A. Caballer Gutierrez, Manuel & M. Scott, Chad', 22],
    ['Ohnheiser, Lena Tina & Malaquias, Manuel António E.', 11],
    ['Sacchetti, Claudia & Landau, Bernard & Ávila, Sérgio P.', 9],
    ['Thivaiou, Danae & Harzhauser, Mathias & Koskeridou, Efterpi', 10],
    ['Valdés, Ángel', 129],
    ['Valdés, Ángel & Cadien, Donald B. & Gosliner, Terrence M.', 16],
    ['Valdés, Ángel & Feliciano, Kendall & Malaquias, Manuel A. E.', 13],
    ['Other (57)', 139]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=472)',
    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);