function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Campião, Karla Magalhães & Morais, Drausio Honorio', 1],
    ['Fugassa, Martin H.', 1],
    ['García-Prieto, Luis & Falcón-Ordaz, Jorge', 1],
    ['Haukisalmi, Voitto & Konyaev, Sergey & Lavikainen, Antti', 1],
    ['Linnaeus, Carolus', 5],
    ['Panti-May, Jesús Alonso & Digiani, María Celina', 1],
    ['Panti-May, Jesús Alonso & Moguel-Chin, Wilson Isaias', 2],
    ['Poglayen, Giovanni & Gori, Francesca & Morandi, Benedetto', 1],
    ['Rossin, María A. & Timi, Juan T. & Hoberg, Eric P.', 1],
    ['Sasaki, Mizuki & Anders, Jason Lee & Nakao, Minoru', 3],
    ['Schulz, R. E. & Landa, D. M.', 1],
    ['Vieira, Fabiano M. & Luque, José L. & Muniz-Pereira, Luís C.', 1],
    ['Zvegintsova, N. S. & Kharchenko, V. A. & Kuzmina, T. A.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=21)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);