function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bau, Tolgor & Yan, Jun-Qing', 8],
    ['Greeshma Ganga, K. G. & Manimohan, Patinjareveettil', 2],
    ['Grimaldi, David A.', 20],
    ['Hussain, Shah & Ahmad, Habib & Ullah, Sadiq', 4],
    ['Hussain, Shah & Usman, Muhammad & Afshan, Najam-ul-Sehar', 4],
    ['Jens-H', 17],
    ['Karunarathna, Samantha C. & Priyashantha, K Hasith', 9],
    ['McEvey, Shane & Schiffer, Michele', 4],
    ['Pfeiler, E. & Castrezana, S. & Reed, L. K. & Markow, T. A.', 4],
    ['Rampasso, Augusto Santos & O’Grady, Patrick Michael', 435],
    ['Rasplus, Jean-Yves & Harry, Myriam & Perrin, Hélène', 8],
    ['Roman, Bruna Emilia & Madi-Ravazzi, Lilian', 19],
    ['Schünemann, Bárbara Letícia Botura & Westphalen, Mauro', 5],
    ['Yan, Jun-Qing & Bau, Tolgor', 8],
    ['Zambrano-Forero, Cristian J & Davila-Giraldo, Lina R', 4],
    ['Other (13)', 16]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=567)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);