function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Brandão, Reuber Albuquerque & Magalhães, Rafael Félix De', 1],
    ['Carvalho, Thiago Ribeiro De & Giaretta, Ariovaldo Antonio', 1],
    ['FAIVOVICH, JULIÁN & HADDAD, CÉLIO F. B. & GARCIA, PAULO C. A.', 4],
    ['Felipe Sá Fortes Leite & Tiago Leite Pezzuti & Pedro Lage Viana', 1],
    ['Lins, Anna Carolina Ramalho & Magalhães, Rafael Félix De', 2],
    ['Napoli, Marcelo Felgueiras & Juncá, Flora Acuña', 1],
    ['Pezzuti, Tiago Leite & Santos, Marcus Thadeu Teixeira', 2],
    ['Walker, Marina & Lourenço, Ana Carolina Calijorne', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=13)',
    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);