function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chan, Jeffery C. F. & Tsang, Alphonse H. F. & Yau, Sze-man', 1],
    ['Eigenmann, C. H.', 1],
    ['Reia, Lais & S. da Costa e Silva, Gabriel', 3],
    ['Smith, Welber Senteio & Halcsik, Leticia', 5],
    ['Soricetti, Mariano & Morawicki, Santiago', 1],
    ['dos Santos, Arthur A. C. & Bertaco, Vinicius A.', 1],
    ['dos Santos, Sergio Alexandre & de Britto, Marcelo Ribeiro', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=14)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);