function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bispo, Pitágoras C. & Neves, Cláudio O. & Froehlich, Claudio G.', 1],
    ['Gonçalves, Maísa De Carvalho & Novaes, Marcos Carneiro', 1],
    ['Menezes, Emely Trajano De & Boldrini, Rafael', 1],
    ['Ribeiro, José Moacir Ferreira & Gorayeb, Inocêncio De Sousa', 2],
    ['Ribeiro, José Moacir Ferreira & Rafael, José Albertino', 6],
    ['Rippel, Mellis Layra Soares & Novaes, Marcos Carneiro', 1],
    ['Stark, Bill P.', 1],
    ['Zúñiga, Maria del Carmen & Stark, Bill P.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=14)',
    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);