function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arias, Erick & Chaves, Gerardo & Salazar, Stanley', 1],
    ['Arroyo, Sandy B.', 1],
    ['Barrio-Amorós, César L. & Molina, César R.', 2],
    ['Batista, Abel & Kohler, Gunther & Mebert, Konrad', 4],
    ['Batista, Abel & Ponce, Marcos & Hertz, Andreas', 1],
    ['Brown, Rafe M. & Siler, Cameron D. & Richards, Stephen J.', 1],
    ['Duellman, William E. & Lehr, Edgar & Venegas, Pablo J.', 2],
    ['Figueroa, Alex & Low, Martyn E. Y. & Lim, Kelvin K. P.', 3],
    ['Grünwald, Christoph I. & Reyes-Velasco, Jacobo', 6],
    ['Macculloch, Ross D. & Lathrop, Amy & Kok, Philippe J. R.', 2],
    ['Miracle, Eulàlia Gassó & Van, Lars W. & Ostende, Den Hoek', 8],
    ['Mueses-Cisneros, Jonh Jairo', 3],
    ['Padial, José M. & Grant, Taran & Frost, Darrel R.', 3],
    ['Reyes-Velasco, Jacobo & Ahumada-Carrillo, Ivan', 2],
    ['Simões, Pedro Ivo & Costa, João Carlos Lopes', 2],
    ['Other (21)', 21]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=62)',
    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);