function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barcelos-Silva, Patrik & Dumas, Leandro Lourenço', 1],
    ['Blahnik Table Of Contents, Roger J.', 24],
    ['Dumas, Leandro Lourenco & Calor, Adolfo Ricardo', 3],
    ['Dumas, Leandro Lourenço & Nessimian, Jorge Luiz', 12],
    ['Novais, Christina & Dumas, Leandro Lourenço', 3],
    ['Paprocki, Henrique & Franca, Diogo', 78]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=121)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);