function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Borteiro, Claudio & Kolenc, Francisco', 2],
    ['Cardozo, Dario E. & Pereyra, Martin O.', 1],
    ['Cassini, Carla Santana & Cruz, Carlos Alberto Gonçalves', 6],
    ['Felipe Sá Fortes Leite & Tiago Leite Pezzuti & Pedro Lage Viana', 1],
    ['Haddad, Célio F. B. & Sazima, Ivan', 1],
    ['Hepp, Fábio & Pombal, José P.', 54],
    ['Leal, Fernando & Leite, Felipe S. F. & Da Costa, William P.', 2],
    ['Leal, Fernando & Zornosa-Torres, Camila', 1],
    ['Manzano, Maria Carolina Rodella & Takeno, Michele Fernandes', 1],
    ['Miracle, Eulàlia Gassó & Van, Lars W. & Ostende, Den Hoek', 2],
    ['Ruggeri, Joice & Weber, Luiz Norberto', 10]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=81)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);