function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bang, Hyun Woo & Baguley, Jeffrey G. & Moon, Heejin', 2],
    ['Dimante-Deimantovica, I. & Jensen, T. C. & Walseng, B.', 1],
    ['Gaviria, Santiago & Defaye, Danielle', 2],
    ['Ishida, Teruo', 1],
    ['KARPOWICZ, Maciej', 1],
    ['Kim, Byung-Woo & Soh, Ho Young & Lee, Wonchoel', 1],
    ['Novikov, Aleksandr & Sharafutdinova, Dayana', 2],
    ['Pugh, P. J. A. & Dartnall, H. J. G. & McInnes, S. J.', 2],
    ['Sars, Georg Ossian', 1],
    ['Tang, Danny & Knott, Brenton', 1],
    ['Watiroyram 1, Santi', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=15)',
    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);