function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Broad, Gavin R.', 4],
    ['Di Giovanni, Filippo & Reshchikov, Alexey & Riedel, Matthias', 2],
    ['Gauld, Ian D. & Fernández-Triana, José L.', 1],
    ['Ghahari, H. & Schwarz, M.', 1],
    ['González-Moreno, Alejandra & Bordera, Santiago', 1],
    ['Khalaim, Andrey I. & Kasparyan, Dmitri R.', 1],
    ['Kolarov, J.', 7],
    ['Lima, Adriane G. M. & Fernandes, Daniell R. R.', 12],
    ['Madl, Michael & O, Tersilochinae.', 1],
    ['Mifsud, David & Farrugia, Lucia & Shaw, Mark R.', 1],
    ['Riedel, Matthias & Ameri, Ali & Talebi, Ali Asghar', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=32)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);