function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Albano, Paolo G. & Steger, Jan & Bakker, Piet A. J.', 1],
    ['Boldin, Vladislav I. & Nikitin, Yuri G.', 1],
    ['Geda, Susan R. & Lujan, Nathan K. & Perkins, Michael', 1],
    ['Geiger, Daniel L.', 1],
    ['Gurumayum, S. D.', 1],
    ['Hryniewicz, Krzysztof & Amano, Kazutaka', 4],
    ['Ivanova, Mariya B. & Tsurpalo, Alexandra P.', 12],
    ['Kolpakov, E. V. & Volvenko, I. Е.', 1],
    ['Lutaenko, K. A. & Artemieva, N. G.', 1],
    ['Mariottini, Paolo & Smriglio, Carlo & Oliverio, Marco', 2],
    ['Mead, A. & Carlton, J. T. & Griffiths, C. L. & Rius, M.', 2],
    ['Oliver, P. Graham & Hallan, Anders & Jayachandran, P. R.', 6],
    ['Pacaud, Jean-Michel', 4],
    ['Sánchez-García, Alba & Sendra, Alberto & Davis, Steven', 2],
    ['Wesselingh, Frank & Poorten, Jan Johan ter & Kijashko, Pavel', 6],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=47)',
    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);