function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Carvalho-E-Silva, Ana Maria Paulino Telles De', 1],
    ['Cruz, Carlos Alberto Gonçalves & Caramaschi, Ulisses', 7],
    ['Cruz, Carlos Alberto Gonçalves & Fusinatto, Luciana Ardenghi', 8],
    ['Recoder, Renato Sousa & Junior, Mauro Teixeira & Cassimiro, José', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=17)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 4, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);