function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['. & R & D & Stuke, Jens-Hermann', 6],
    ['Bächli, Gerhard & Merz, Bernhard & Haenni, Jean-Paul', 7],
    ['El-Hawagry, Magdi & Soliman, Ahmed Mostafa', 26],
    ['Evenhuis, Neal L. & O’Hara, James E. & Pape, Thomas', 7],
    ['Gibson, Joel F. & Skevington, Jeffrey H.', 44],
    ['Khaghaninia, Samad & Kazerani, Farzaneh', 8],
    ['Linnaeus, Carolus', 10],
    ['Meigen, Johann Wilhelm', 21],
    ['O’Hara, James E. & Cerretti, Pierfilippo & Pape, Thomas', 10],
    ['Published, First', 131],
    ['Rocha, Leonardo Silvestre Gomes & Mello-Patiu, Cátia Antunes De', 22],
    ['Sforzi, Alessandra & Sommaggio, Daniele', 25],
    ['Stuke, Jens-Hermann', 135],
    ['Stuke, Jens-Hermann & Clements, David K.', 33],
    ['Stuke, Jens-Hermann & Skevington, Jeffrey H.', 32],
    ['Other (19)', 28]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=545)',
    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);