function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barcelos, Luis MD & Rodrigues, Pedro R & Bried, Joel', 30],
    ['Boano, Giovanni & Belemsobgo, Urbain & Silvano, Fabrizio', 6],
    ['Castro-Vargas, Fernando & Cruz-Mendivelso, Yerson', 1],
    ['Gonza ́ Lez-Acun, Daniel A. & Palma, Ricardo L.', 1],
    ['Just, João Paulo Gava & Rosoni, Jonas Rafael Rodrigues', 2],
    ['Lima, Rafael Dantas & Silveira, Luís Fábio', 1],
    ['Merrem, Blasius', 1],
    ['Vilas Boas da Frota, Angélica & Vitorino, Breno Dias', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=44)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);