function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chagas-Jr, Amazonas & Bichuette, Maria Elina', 1],
    ['Chagas-Jr, Amazonas & Chaparro, Elisa', 2],
    ['Chagas-Junior, Amazonas', 1],
    ['Cupul-Magaña, Fabio Germán', 4],
    ['Hollier, John & Stagl, Verena', 1],
    ['Jonishi, Taro & Nakano, Takafumi', 1],
    ['Lewis, JGE', 1],
    ['Lewis, John G. E. & Minelli, Alessandro & Shelley, Rowland M.', 1],
    ['Schileyko, Arkady A.', 2],
    ['Schileyko, Arkady A. & Stoev, Pavel E.', 3],
    ['Schileyko, Arkady A. & Vahtera, Varpu & Edgecombe, Gregory D.', 1],
    ['Simaiakis, Stylianos Michail & Edgecombe, Gregory D.', 6],
    ['Thofern, Detlef & Dupérré, Nadine & Harms, Danilo', 4],
    ['Tran, Binh T. T. & Le, Son X. & Nguyen, Anh D.', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=32)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);