function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Brito, Lucas Cavalcanti & Grazia, Jocelia & Barão, Kim Ribeiro', 1],
    ['Carrenho, Renan & Rodrigues, Higor D. D.', 5],
    ['Castro-Huertas, Valentina & Grazia, Jocelia & Forero, Dimitri', 3],
    ['Castro-Huertas, Valentina & Schwertner, Cristiano F.', 2],
    ['Klein, Joana Tartari & Barcellos, Aline & Grazia, Jocélia', 2],
    ['María C. Melo & Gimena Dellapé & Leonela Olivera', 2],
    ['Matesco, Viviana Cauduro & Bianchi, Filipe Michels', 1],
    ['Panizzi, Antônio Ricardo & Grazia, Jocélia', 1],
    ['Poock-Da-Silva, Priscila & Barão, Kim Ribeiro & Grazia, Jocelia', 5],
    ['Ruschel, Tatiana Petersen & Guidoti, Marcus & Barcellos, Aline', 7],
    ['Silva, Valeria Juliete Da & Santos, Cleverson Rannieri Meira Dos', 6],
    ['Spinola, Maximilien', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=36)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);