function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['An, Jianmei & Boyko, Christopher B. & Li, Xinzheng', 2],
    ['Boyko, Christopher B.', 2],
    ['Boyko, Christopher B. & Williams, Jason D. & Shields, Jeffrey D.', 3],
    ['Brito, Ayrton & Cardoso, Irene Azevedo & Boyko, Christopher B.', 2],
    ['Horch, Amanda Porciuncula & Huber, Augusto Frederico', 2],
    ['Kazmi, Quiddusi B. & Boyko, Christopher B.', 1],
    ['Page, Roderic Dugald Morton Dr.', 2],
    ['Pardo, Luis Miguel & Boyko, Christopher B.', 5],
    ['Pereira, Emanuel & Doti, Brenda Lía & Roccatagliata, Daniel', 1],
    ['Williams, Jason D. & Boyko, Christopher B. & Madad, Asma Z.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=21)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);