function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Hippa, Heikki', 162],
    ['Hippa, Heikki & Kjaerandsen, Jostein & Saigusa, Toyohei', 11],
    ['Hippa, Heikki & Kurina, Olavi', 66],
    ['Hippa, Heikki & Kurina, Olavi & Sääksjärvi, Ilari E.', 31],
    ['Hippa, Heikki & Papp, László', 18],
    ['Hippa, Heikki & Saigusa, Toyohei', 12],
    ['Hippa, Heikki & Søli, Geir & Kurina, Olavi', 39],
    ['Hippa, Heikki & Ševċík, Jan', 21],
    ['Hippa, Heikki & Ševčík, Jan', 6],
    ['Jaschhof, Mathias & Hippa, Heikki', 28],
    ['Jaschhof, Mathias & Jaschhof, Catrin', 5],
    ['Kurina, Olavi & Hippa, Heikki', 57],
    ['Kurina, Olavi & Hippa, Heikki & Amorim, Dalton De Souza', 8],
    ['Kurina, Olavi & Hippa, Heikki & Amorim, Dalton de Souza', 17],
    ['Sevcik, Jan & Hippa, Heikki & Wahab, Rodzay Abdul', 15],
    ['Other (7)', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=508)',
    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);